# Online Geometry Calculators

## Table of Contents

- Overview
- 75 Basic Plane Geometry Calculators
- 38 Advanced Plane Geometry Calculators
- 95 Basic Solid Geometry Calculators
- 24 Advanced Solid Geometry Calculators

## Overview

Geometry is much more than the study of shapes. As Khan Academy notes, it is about the “nature of these shapes, how we define them, and what they teach us about the world at large.”

There are tons of geometry calculators available online. It can be difficult to sift through them all. Below is a collection of 232 calculators separated by type of geometry and skill level.

## Plane Geometry

As MathIsFun.com explains, plane geometry is the study of “flat shapes like lines, circles, and triangles.”

Below is a collection of plane geometry calculators divided by skill level.

__Basic Plane Geometry__

### Circles

#### Multiple Functions

CalculatorSoup.com's Circle Calculator – Use the drop down menu to find a circle's area, circumference, or radius. It includes some tutorial information as well as circle formulas and examples.

EasyCalculation.com's Radius of a Circle – This tool helps you find the radius of a circle using four known points. It includes a diagram to help explain.

EasyCalculation.com's Circle Calculator – This easy-to-use utility helps you find several aspects of a circle, such as diameter, area, and circumference.

1728.org's Circle Calculator – When you know two variables (area, volume, radius, height), this will help you find the other two. It also includes spheres and cylinders.

WebMath.com's Find Out Things About Circles – Use the drop down menus to find a circle's radius, diameter, circumference, or area. It also provides easy-to-understand tutorial information and formulas as a reference.

MathPortal.org's Circle Calculator – This is quick, easy-to-use, and features a circle diagram with a marked radius and diameter. Enter one known value and it will find the unknown values, including the radius, diameter, area, or circumference.

NCalculators.com's Circle Calculator – Enter your radius and it will find the circumference, area, and diameter. It also features tutorial information about circles, needed formulas, and a circle diagram.

Free-Online-Calculator-Use.com's Circle Calculator – Features easy-to-understand definitions of circle area, circumference, diameter, and radius. It is easy to use and offers directions.

#### Circumference

Basic-Mathematics.com's Circumference Calculator – Provides a quick and easy way to find a circle's circumference. Just enter the radius length and it will provide your result. It also provides the circumference formula.

MathGoodies.com's Circumference Calculator – There are no bells and whistles here. Just enter the radius and it finds the circumference.

CSGNetwork.com's Circle and Sphere Area Calculator – Enter a known value to find the area, radius, diameter, or circumference. It can also be used to for figuring a sphere's surface area and volume.

TutorVista.com's Circle Calculator – This easy-to-use tool prompts you to enter the radius of a circle. It will find the circle's diameter, area, and circumference. It also features a labeled circle diagram.

#### Area

Basic-Mathematics.com's Area of a Circle Calculator – Provides the area of a circle formula as a reference. Enter the radius length and it calculates the area for you.

MathIsFun.com's Area of a Circle Calculator – This is fun to use. It has you enter your data on a circle diagram and instantly provides your results, changing the circle's area, circumference, diameter, and radius depending on which variable you changed. It also features the circle formulas.

### Polygons

#### Multiple Functions

CalculatorSoup.com's Regular Polygon Calculator – This can be used to figure a polygon's side length, inradius (apothem), circumradius, area, perimeter. It provides tutorial information about polygons, polygon formulas, and a figure including drawings of several kinds of polygons.

EasyCalulation.com's Polygon Calculator – This tool is split into five parts. Four of the provided options can be used to find the area of a polygon depending on which variable you know. The other can be used to figure its perimeter.

EasyCalculation.com's Regular Polygon Calculator – This is easy to use. Just input the number of sides of your regular polygon and its circumradius to find the length of its sides, its area, the area of its circle, and the area ratio.

1728.org's Regular Polygon Calculator – To use this tool, enter your polygon's number of sides and length of 1 side to find its perimeter, each interior angle, interior angle (sum), each exterior angle, each central angle, circumradius, inradius, and total area. It also includes a helpful diagram that illustrates each of these aspects of a polygon.

CleaveBooks.co.uk's Regular Polygon Calculator – This is easy to use. Enter the number of edges on your polygon and their lengths to find its area, in-radius, and circum-radius. It also features tutorial information about regular polygons.

Math.Rutgers.Edu's Regular n-gon Calculator – This was developed by the Department of Mathematics at Rutgers University. It provides definitions of the quantities it will find and features a detailed polygon diagram.

TutorVista.com's Polygon Calculator – Provides two ways to calculate a polygon's area. It offers step-by-step instructions and examples using each method.

Arachnoid.com's Polygon Calculator – Shows a polygon inscribed in a circle and uses the radius to figure the area and other properties.

#### Area Calculators

Keisan.Casio.com's Area of a Regular Polygon Calculator – Features three polygon diagrams to illustrate the possible types. It will find the area of a regular polygon when you enter the number of sides and the side length.

MeraCalculator.com's Area of a Polygon Calculator – Features four methods for figuring the area of a polygon and provides the formulas for each method. It will also calculate a polygon's perimeter.

NCalculators.com's Regular Polygon Area Calculator – Provides a quick and easy way to find a regular polygon's area. It also provides tutorial information and a formula for finding a polygon's area.

### Pythagorean Theorem and Right Triangles

#### Multiple Functions

CalculatorSoup.com's Right Triangles Calculator – Provides tutorial information about right triangles and the Pythagorean Theorem. It also provides a diagram of a right triangle. When you know two sides of the triangle, you can find 7 unknowns, including the right triangle's other side (using the Pythagorean Theorem), perimeter, semi-perimeter, area, and altitudes.

CleaveBooks.co.uk's Right Triangles Calculator – To use this, input two known variables to find its unknown variables. It also provides helpful tutorial information about right triangles and a diagram of a right triangle.

CSGNetwork.com's Right Triangle Angle and Side Calculator – This is easy to use and provides clear results. Enter two known variables (side lengths or angles) to find the unknown variables.

WebMath.com's Find Out Things About Right Triangle Calculator – This is easy to use. Enter the base of your triangle and its height and then use the drop down menu to figure its area, perimeter, or volume. It also provides a few quick tips about right triangles.

MathPortal.org's Right Triangle Calculator – Features a well-labeled right triangle diagram. It provides a “General Example” button to help you get started.

AnalyzeMath.com's Right Triangle Solver – Provides four different tools for you to use depending on what you know about your right triangle.

TutorVista.com's Right Triangle Calculator – Enter the side A and B of your triangle to find its other properties, including the hypotenuse length, perimeter, and area.

EndMemo.com's Right Triangle Calculator – Can be used to find a variety of properties for a right triangle. It also features a comprehensive list of the formulas used for right triangles.

KylesConverter.com's Right Triangle Calculator – This is easy to use and features unique chalkboard-style diagrams to help explain right triangles.

#### Pythagorean Theorem

Basic-Mathematics.com's Pythagorean Theorem Calculator – Uses the Pythagorean Theorem to find the unknown side of your right triangle. It is easy to use and provides helpful guidelines about right triangles.

MiniWebTool.com's Pythagorean Theorem Calculator – When you know two values, this uses the Pythagorean theorem to find your missing value. It provides brief tutorial information about the Pythagorean Theorem.

NCalculators.com's Pythagorean Theorem Calculator – Provides information about the Pythagorean Theorem and features an easy-to-understand, labeled diagram.

1728.org's Pythagorean Theorem Calculator – Provides some tutorial information about the Pythagorean Theorem. It also provides the equation for solving the Pythagorean Theorem when the hypotenuse and one side are the known variables.

#### Area

OnlineConversion.com's Area of a Right Triangle Calculator – Provides a quick and easy way to find a right triangle's area and perimeter.

### Rectangles

#### Multiple Functions

CalculatorSoup.com's Rectangle Calculator – This easy-to-use tool provides tutorial information and needed formulas. When you know two values, use the drop down menu to figure 1 side length, area, perimeter, or diagonals.

EasyCalculation.com's Rectangle Calculator – Provides the definition of a rectangle and finds area and perimeter. It is easy to use and provides instant results. It can also be used to figure the area and perimeter of a parallelogram.

WebMath.com's Find Out Things About Rectangles – This is easy to use. Simply input the width and height of your rectangle and then use the drop down menu to find its perimeter, diagonal, area, or volume. Use the tutorial information provided to learn more about rectangles and the formulas used with them.

MeraCalculator.com's Rectangle Calculator – This features functions that calculate the area and perimeter of a rectangle. It also provides the formulas used.

MathPortal.org's Rectangle Calculator – When you know two values, this will find the side lengths, area, perimeter, and diagonal. It is easy to use, but if you need extra help, it features a “General Example” button that shows you how it works.

EndMemo.com's Rectangle Calculator – This will find the unknown values of a rectangle when you know two values. It features a labeled rectangle diagram and the rectangle formulas.

NCalculators.com's Rectangle Calculator – When you know the length and width, this will find the diagonal length, perimeter, and area of a rectangle. It provides tutorial information about rectangles.

Keisan.Casio.com's Rectangle Calculator – This easy-to-use, cleanly designed tool will find the area and perimeter of a rectangle when you input its side lengths.

RechnerOnline.de's Rectangle Calculator – This is quick and easy to use. It will find a rectangle's diagonal, area, and perimeter when you input the side lengths.

#### Perimeter

TutorVista.com's Perimeter of a Rectangle Calculator – This features step-by-step instructions on how to find the perimeter of a rectangle.

#### Area

OnlineMSchool.com's Area of a Rectangle Calculator – Features a well-labeled, easy-to-understand rectangle diagram. It provides a quick and easy way to figure a rectangle's area.

TutorVista.com's Area of a Rectangle Calculator – Features step-by-step instructions on how to find the area of a rectangle.

#### Diagonal

TutorVista.com's Diagonal Calculator – Provides step-by-step instructions on how to find a rectangle's diagonal.

### Squares

#### Multiple Functions

CalculatorSoup.com's Square Calculator – When you know one variable, this easy-to-use tool can find your square's side length, diagonal length, perimeter or area. It also provides some tutorial information about squares, square formulas, and a diagram of a square.

EasyCalculation.com's Square Calculator – This page provides the definition of a square. It is easy to use and can figure a square's area, perimeter, and diagonal.

WebMath.com's Find Out Things About Squares – Use the drop down menus to indicate what you know about your square (side length, perimeter, diagonal, area) to find out what you want to know. It also provides easy to understand facts about squares and square formulas.

MathPortal.org's Square Calculator – This is easy to use, provides the formulas used for squares, and examples of how to use them. It will provide the area, perimeter, and diagonal.

NCalculators.com's Square Calculator – Provides a quick and easy way to find a square's diagonal length, perimeter, and area.

TutorVista.com's Square Calculator – In addition to finding the area, perimeter, and diagonal length of a square, this tool provides step-by-step instructions on how to do so and offers examples.

MeraCalculator.com's Square Calculator – This tool will find a square's area, perimeter, and diagonal length. It also provides explanations of the properties of a square.

#### Perimeter

OnlineMSchool.com's Perimeter of a Square – This tool finds the perimeter of a square and provides the two formulas that can be used to do so.

AJDesigner.com's Perimeter of a Square – This is easy to use and cleanly designed. It provides a quick way to find square's perimeter.

### Triangles

#### Multiple Functions

EasyCalculation.com's Triangle Calculator – This easy-to-use tool performs four separate functions. It will find the area of a triangle, the perimeter of a triangle, the area of an equilateral triangle, and the area of triangle SAS (Side Angle Side, 2 sides & opposite angle).

1728.org's Triangle Tester – This is easy and fun to use. Enter 2 or 3 side lengths and it will tell you what kind of triangle those lengths will create. It also includes tutorial information that explains different properties of triangles.

1728.org's 30 60 90 and 45 45 90 Triangle Calculator – This may seem overwhelming at first, but it is easy to use. Just follow the steps provided in the “Instructions” section. It also provides diagrams of the types of triangles being calculated.

Calculator.net's Triangle Calculator – A uniquely designed, fun-to-use utility has you enter your known 3 values on a triangle diagram and shows your results on a triangle. It also provides tutorial information about angles and sides of a triangle.

OsterMiller.org's Triangle Calculator – This is fun to use. It has you enter your data on the triangle diagram. Enter three values to find the other three values.

#### Area

Basic-Mathematics.com's Heron's Formula Calculator – Explains how Heron's formula is used and provides instructions on how to use the calculator. It will find the area of your triangle.

MathWorksheetsGo.com Area of a Triangle Calculator – Features an easy-to-understand diagram and provides a quick and easy way to find a triangle's area.

Online-Calculators.co.uk's Area of a Triangle – Features two methods and formulas for calculating a triangle's area. You'll decide which one to use based on what you know about your triangle.

#### Equilateral Triangles

CalculatorSoup.com's Equilateral Triangles Calculator – This explains what an equilateral triangle is and provides necessary formulas and a diagram of an equilateral triangle. When you have one known variable, it can be used to calculate the unknown variables. Possible calculations are length of a side, perimeter, semi-perimeter, area, and altitude.

RechneOnline.de's Equilateral Triangle Calculator – Use this to find the properties of an equilateral triangle. Enter one known value to find other properties such as perimeter and area.

#### Irregular Triangles

HandyMath.com's Irregular Triangle Calculator – This helps you analyze an irregular triangle. It features a labeled irregular triangle as a visual aid.

#### Isosceles Triangles

CalculatorSoup.com's Isosceles Triangle Calculator – This page explains what an isosceles triangle is, provides some tutorial information and necessary formulas and provides a diagram of an isosceles triangle. Enter the lengths of sides “a” and “b” (based on the provided diagram) to find the triangle's perimeter, semi-perimeter, area, and altitudes.

#### Scalene Triangles

EasyCalculation.com's Scalene Triangle Area and Perimeter Calculator – This is quick and easy to use. Just enter the side lengths of your triangle and it provides the perimeter and area.

__Advanced Plane Geometry__

### Annulus

#### Multiple Functions

CalculatorSoup.com's Annulus Calculator – This easy to use tool helps you find the area, circumference, and radii of an annulus. It includes some tutorial information, annulus formulas, and examples.

CleaveBooks.co.uk's The Annulus Calculator – This tool provides examples of where you might find an annulus in the real world.

MathCelebrity.com's Annulus Calculator – Enter the large radius and small radius and it provides the area and shows the formulas used.

#### Area

CSGNetwork.com's Annulus Area Calculator – This is easy to use and provides some tutorial information on annuli.

Convertxy.com's Areas and Properties of Annulus Rings – This is cleanly designed and can figure several aspects of annulus rings, including outer radius, inner radius, width (or thickness), area and more.

OnlineConversion.com's Area of Annulus Calculator – This is easy to use. Just enter the inner radius and outer radius and it figures circumference and area.

### Kites

#### Multiple Functions

1728.org's Kite Calculator – Click the button that represents the data you know about your kite, input your data, and it will figure the unknown variables, including side lengths, area, perimeter, and more. It also features a kite diagram and tutorial information explaining a kite's properties.

EasyCalculation.com's Kite Calculator – This easy-to-use utility performs three functions. It will find the area of a kite, the area of a kite using trigonometry, and the perimeter of a kite.

CalcTool.org's Kite Calculator – Features a detailed diagram to aid in its use. It can be used to find a kite's area, side lengths, and angles.

NCalculators.com's Kite Calculator – Shows how to find the area of a kite without using the trigonometry method. Instead, it finds the area using the diagonal method.

MeraCalculator.com's Kite Calculator – Finds the area of a kite using either the diagonal method or the trigonometry method. It also figures a kite's perimeter and features examples to make using and understanding it easier.

#### Area

TutorVista.com's Area of a Kite Calculator – This is easy to use and provides step-by-step instructions on how to find the area of a kite using the diagonal method.

Had2Know.com's Kite Area Calculator – This easy-to-use tool presents detailed explanations of three different ways of finding the area of a kite.

### Parallelograms

#### Multiple Functions

CalculatorSoup.com's Parallelogram Calculator – Provides tutorial information explaining what a parallelogram is and needed formulas. Use the drop down menu to calculate parallelogram side lengths, corner angles, diagonals, height, perimeter, and area.

1728.org's Parallelogram Calculator – Can be used to find aspects of parallelograms and other quadrilaterals, such as squares, rectangles, and rhombi. It is easy to use. Just click on the shape you're working with and enter your data.

PlanetCalc.com's Parallelogram Calculator – Finds a parallelogram's diagonals and adjacent angles. It features a parallelogram diagram and tutorial information on the formula used.

EndMemo.com's Parallelogram Calculator – Use this to find a parallelogram's area, perimeter, short diagonal, and long diagonal. It features a diagram of a parallelogram and the parallelogram formulas.

Rechneonline.de's Parallelogram Calculator – This easy-to-use tool will find a variety of properties of a parallelogram.

Had2Know.com's Parallelogram Calculator – Finds the area of a parallelogram. It features detailed tutorial information and two diagrams showing parallelograms.

CalcResult.com's Parallelogram Calculator – Features a well-labeled diagram of a parallelogram. It will figure every dimension of a parallelogram.

#### Area

Keisan.Casio.com's Area of a Parallelogram Calculator – This is easy to use. Just enter the parallelogram's base length, side length, and one angle and it will find the surface area and perimeter.

TutorVista.com's Area of a Parallelogram Calculator – Enter the base value and height and it will provide the area. It features a parallelogram diagram and the formula used.

OnlineMSchool.com's Area of a Parallelogram Calculator – Use the drop down menu to indicate the values you'll be entering. This tool provides the area of your parallelogram. It features a labeled parallelogram diagram and a breakdown of the formulas used.

NCalculators.com's Area of a Parallelogram Calculator – This is easy to use. Enter the length and width of the parallelogram and it provides the area. It also features a labeled parallelogram diagram and tutorial information.

MiniWebTool.com's Area of a Parallelogram Calculator – There are no bells and whistles with this. Just enter the base and height of your parallelogram for a quick calculation of its area.

Convertxy.com's Area of a Parallelogram Calculator – Indicate which dimensions of the parallelogram you know and this will use them to find the area.

#### Perimeter

AJDesigner.com's Perimeter of a Parallelogram Calculator – This is cleanly designed. Enter the base length and side length and it provides the perimeter.

### Rhombus

#### Multiple Functions

CalculatorSoup.com's Rhombus Calculator – This is easy to use. Input two variables to fund the rhombus's side lengths, corner angles, diagonals, height, perimeter, and area. It also provides some tutorial information, a diagram of a rhombus, and rhombus formulas and constraints.

EasyCalculation.com's Rhombus Calculator – Provides the definition of a rhombus and offers three methods for calculating its area. It also includes a calculator for finding a rhombus's perimeter.

MeraCalculator.com's Rhombus Calculator – Features three methods for finding a rhombus's area. It will also calculate the perimeter and provides needed formulas and examples.

OnlineMSchool.com's Rhombus Calculator – Explains the properties of a rhombus and features a well-labeled diagram. It can be used to calculate the area of a rhombus.

NumberEmpire.com's Rhombus Calculator – This can be used to find different properties of a rhombus including area and perimeter. With each solution, it provides a step-by-step explanation of how it calculated the results.

RechnerOnline.de's Rhombus Calculator – When you enter a side length and one angle, this will find the other properties, such as the area, perimeter, and diagonals.

#### Area

Math-Prof.com's Area of a Rhombus Calculator – This is fun to use and has you enter your rhombus's length and width on a rhombus diagram. It will, then, find the area.

TutorVista.com's Area of a Rhombus Calculator – In addition to figuring the area of a rhombus, this tool provides step-by-step instructions on how to do so and example problems.

NCalculators.com's Area of a Rhombus Calculator – Provides two methods for calculating the area of a rhombus. It also provides some tutorial information and a diagram of a rhombus.

Keisan.Casio.com's Area of a Rhombus Calculator – This can be used to find a rhombus's area, perimeter and vertex angles. It is cleanly designed and easy to use.

Calculator.Swiftutors.com's Area of a Rhombus Calculator – This is easy to use and provides a color-coded version of the formula being used to find the rhombus's area.

## Solid Geometry

As MathIsFun.com explains, solid geometry is the study of “three dimensional objects like prisms, cylinders, and spheres.”

Below is a collection of solid geometry calculators divided by skill level.

__Basic Solid Geometry__

### Cones

#### Multiple Functions

CalculatorSoup.com's Right Circular Cone Calculator – This easy-to-use tool provides tutorial information, necessary circular cone formulas, and a cone diagram. When you know two variables, you can use this to find a cone's radius, height, slant height, volume, lateral surface area, base surface area, and total surface area.

EasyCalculation.com's Cone Calculator – This easy-to-use tool can be used to complete four functions. It will find a cone's slant height, volume, curved surface area, and total surface area.

CleaveBooks.co.uk's Cone Calculator – Can be used to find the properties of a cone such as the base radius, slant height, and volume. It also features tutorial information about cones.

PlanetCalc.com's Cone Calculator – Provides tutorial information, cone images, and formulas to strengthen your knowledge of cones.

NCalculators.com's Cone Calculator – Features a detailed cone diagram and can be used to figure a cone's volume, total area, and slant height(s).

RechneOnline.de's Cone Calculator – Can be used to find different properties of a cone, including volume, surface area, and slant height.

RKM.com.au's Cone Calculator – Can be used to find a cone's volume and surface area. It features a detailed diagram and includes the formulas used.

#### Surface Area

MiniWebTool.com's Surface Area of a Cone Calculator – In addition to figuring the surface area of a cone, this tool provides the different formulas used to calculate cone surface area.

TutorVista.com's Surface Area of a Cone Calculator – This easy-to-use utility features step-by-step instructions for finding the surface area of a cone and examples.

#### Volume

Basic-Mathematics.com's Volume of a Cone Calculator – This is quick and easy to use. Just enter your cone's radius and height and it will calculate the volume.

Online-Calculators.co.uk's Volume of a Cone Calculator – Provides a quick and easy way to find the volume of a cone. It also briefly explains how to do so.

KylesConverter.com's Volume of a Cone Calculator – Fun tool features chalkboard-style diagrams to help explain how to find the volume of a cone.

TutorVista.com's Volume of a Cone Calculator – This easy-to-use tool features step-by-step instructions for finding the volume of a cone and examples.

AJDesigner.com's Volume of a Cone Calculator – This is easy to use and cleanly designed.

### Cubes

#### Multiple Functions

CalculatorSoup.com's Cube Calculator – This is easy to use and provides cube formulas and a diagram. When you know one variable, it can be used to find a cube's side lengths, face diagonal, solid diagonal, surface area, and volume.

EasyCalculation.com's Cube Calculator – This easy-to-use tool performs three functions. When you know a cube's side length, use it to find the volume, surface area, or diagonal.

1728.org's Cube Area and Volume Calculator – This utility is easy to use and provides a cube diagram. Enter a side length and it will find the cube's area, the area of one face, perimeter, face diagonal, and volume.

RechnerOnline.de's Cube Calculator – Features a cube diagram and can be used to find several properties of a cube including surface area and volume.

#### Surface Area

Basic-Mathematics.com's Surface Area of a Cube Calculator – Quick and easy to use, just enter your cube's side length and this will provide the surface area.

TutorVista.com's Surface Area of a Cube Calculator – This tool provides a “flattened” cube as a great visual aid. It also features step-by-step instructions on how to find the surface area of a cube and example problems.

NCalculators.com's Area of a Cube Calculator – Provides tutorial information about cubes and provides the formula for finding the area of a cube.

MiniWebTool.com's Surface Area of a Cube Calculator – Quick and easy to use tool. Just enter your edge length and it will find the surface area for you.

OnlineConversion.com's Surface Area of a Cube Calculator – This is easy to use and features large cube diagram.

#### Volume

Basic-Mathematics.com's Volume of a Cube Calculator – When you need to quickly find the volume of a cube, this is a great choice. Just enter the length of one side and it will provide the volume.

TutorVista.com's Volume of a Cube Calculator – This easy-to-use tool provides step-by-step instructions on how to find the volume of a cube and example problems.

Online-Calculators.co.uk Volume of a Cube Calculator – Offers a quick and easy way to find the volume of a cube. It also features a diagram.

NCalculators.com's Volume of a Cube Calculator – Provides tutorial information about finding the volume of a cube and provides the cube volume formula.

Keisan.Casio.com's Volume of a Cube Calculator – Easy to use and cleanly designed. It provides the cube volume formula and a labeled diagram.

MiniWebTool.com's Volume of a Cube Calculator – This is quick and easy to use. Just enter your edge length and it will find the volume for you.

### Cylinders

#### Multiple Functions

CalculatorSoup.com's Cylinder Calculator – This is easy to use and provides tutorial information, cylinder formulas, and a cylinder diagram. When you know two variables, use it to find your cylinder's radius, height, volume, lateral surface area, top surface area, base surface area, and total surface area.

EasyCalculation.com's Cylinder Calculator – This easy-to-use utility can be used to complete three functions. When you know a cylinder's radius and height, it will find its volume, curved surface area, and total surface area.

1728.org's Horizontal Cylindrical Tank Calculator – Provides a great way to see the real world importance of what you're learning in your geometry study. You can use it to find the volume of “partially-filled horizontal cylinders.” It provides instructions and a diagram.

1728.org's Vertical Cylinder Tank Calculator – Similar to the Horizontal Cylindrical Tank Calculator, this will find the volume of a partially-filled vertical tank. It provides instructions and a diagram.

WebMath.com's Find Out Things About Cylinders – Use the drop down menu to find your cylinder's radius, diameter, area, or volume based on the variables you know. This page also provides tutorial information about cylinders and a cylinder diagram.

NCalculators.com's Cylinder Calculator – Features a detailed diagram and can be used to find a cylinder's volume, total surface area, base surface area, and lateral surface area.

EndMemo.com's Right Circular Cylinder Calculator – This can be used to find different properties of a cylinder. It includes the formulas used for properties such as volume, lateral surface area, and curved surface area.

#### Surface Area

Basic-Mathematics.com's Cylinder Surface Area Calculator – This is quick and easy to use. Enter your cylinder's radius and height and it will provide the surface area.

MiniWebTool.com's Surface Area of a Cylinder Calculator – In addition to figuring the surface area of a cylinder, this tool provides a step-by-step breakdown of the formula used.

#### Volume

Basic-Mathematics.com Volume of a Cylinder Calculator – This is quick and easy to use. Enter your cylinder's radius and height and it will provide the volume.

Online-Calculators.co.uk's Volume of a Cylinder Calculator – Use this tool to quickly find a cylinder's volume when you know its radius and height.

OnlineConversion.com's Volume of a Cylindrical Tank Calculator – When you know two values, use this to find the other values of your tank, including radius, diameter, length, and volume.

TutorVista.com's Volume of a Cylinder Calculator – Provides step-by-step instructions for calculating the volume of a cylinder and provides examples.

KylesConverter.com Volume of a Cylinder Calculator – This fun tool features easy-to-understand, chalkboard-style diagrams to explain how to find the volume of a cylinder.

### Pyramids

#### Multiple Functions

CalculatorSoup.com's Square Pyramid Calculator – This easy-to-use utility provides some tutorial information, square pyramid formulas, and a diagram. When you know two variables, use it to find a pyramid's height, slant height, side length, lateral edge length, volume, and total surface area.

EasyCalculation.com's Pyramid Calculator – This easy-to-use tool finds properties such as base area, surface area, and volume for a variety of pyramid types, including regular triangular pyramids, regular square pyramids, regular pentagonal pyramids, and regular hexagonal pyramids.

1728.org's Right Regular Pyramid – Provides some tutorial information and a diagram. Enter a pyramid's number of sides, base length, and height to find a variety of properties, including volume, base area, and slant height.

Keisan.Casio.com's Square Pyramid Calculator – Provides a labeled diagram and can be used to find several properties of a square pyramid including volume and surface area.

Math-Prof.com's Area & Volume of a Square Pyramid Calculator – This is fun and easy to use. It has you enter your dimensions on the square pyramid diagram.

NCalculators.com's Pyramid Calculator –Provides a labeled diagram, tutorial information about pyramids, and can find a pyramid's volume, total surface area, and other properties.

MeraCalculator.com's Pyramid Calculator – Finds the area of several different kinds of pyramids, including triangle pyramids, square pyramids, pentagonal pyramids, and more.

#### Height

EasyCalculation.com's Height of a Regular Pyramid Calculator – This is quick and easy to use. Enter a pyramid's lateral edge, number of sides, and base side length to find its height.

EasyCalculation.com's Slant Height of a Pyramid Calculator – Providing quick results, this calculator is a convenient way to find a pyramid's slant height. Just enter the height and base of the pyramid and you're ready to calculate.

EasyCalculation.com's Slant Height of a Square Pyramid Calculator – Quick and easy to use, enter a square pyramid's side length and height to find its slant height.

#### Surface Area

EasyCalculation.com's Lateral Surface Area of a Regular Pyramid using Slant Height Calculator – Offers a quick and easy way to find the lateral surface area of a pyramid.

EasyCalculation.com's Total Surface Area of a Regular Pyramid Calculator – This utility is quick and easy to use. Just enter the pyramid's number of sides, base side length, lateral edge, semi-perimeter, and radius and it will provide its lateral surface area, base area, and total surface area.

TutorVista.com's Surface Area of a Pyramid Calculator – Features a detailed pyramid diagram, step-by-step instructions, and example problems.

Basic-Mathetics.com's Area of a Square Pyramid Calculator – This tool is easy to use but provides instructions if you have trouble. It also features a labeled diagram.

OnlineConversion.com's Surface Area of a Rectangular Pyramid Calculator – This is quick and easy to use. Just enter your edge lengths and height and it will find the surface area.

CalcuNation.com's Square Pyramid Surface Area Calculator – Provides a breakdown explanation of the square pyramid surface area formula. It also provides an easy-to-understand pyramid diagram.

#### Volume

EasyCalculation.com's Volume of a Regular Pyramid Calculator – Quick and easy to use, enter a pyramid's semi-perimeter, radius, and height to find its base area and volume.

TutorVista.com's Volume of a Pyramid Calculator – Provides step-by-step instructions, diagrams of triangular-based and square pyramids, and example problems.

MiniWebTool.com's Volume of a Pyramid Calculator – This is cleanly designed and easy to use. It provides a labeled pyramid diagram.

### Rectangular Prisms

#### Multiple Functions

CalculatorSoup.com's Rectangular Prism Calculator – This is easy to use and provides some tutorial information, rectangular prism formulas, and a diagram. When you know three variables, use it to find the prism's height, diagonal, surface area, and volume.

EasyCalculation.com's Prism Calculator – In addition to using this to find the base area, base perimeter, surface area, volume, and diagonal of a rectangular prism, it can also find properties for other types of prisms. See also EasyCalculation's quadrangular prism calculator.

EasyCalculation.com's Rectangular Prism/Box Calculator – This is quick and easy to use. Enter a rectangular prism's width, length, and height to find its surface area and volume.

1728.org's Rectangular Prism (Solid) Area and Volume Calculator – This tool provides a brief explanation of the rectangular prism formulas. Enter a rectangular prism's length, width, and height to find its volume, total area, and the area of its faces.

1728.org's Rectangular Tank Calculator – Shows the real world uses of your geometry study. Use it to find the volume of a partially-filled rectangular tank. It also provides some tutorial information and a helpful diagram.

1728.org's Right Regular Prism Calculator – Provides some tutorial information and a diagram. When you know a right regular prism's number of sides, side length, and height, use it to find other properties such as area and base perimeter.

WebMath.com's Find Out Things About a Box Calculator – Provides tutorial information about boxes. Enter the length, width, and height of a box and then use the drop down menu to find either its volume or surface area.

NCalculators.com's Rectangular Cuboid Calculator – Features an easy to understand diagram and can calculate properties such as perimeter, volume, and surface area.

#### Surface Area

Basic-Mathematics.com's Surface Area of a Prism Calculator – This is quick and easy to use. Enter the prism's length, width, and height and it will provide its surface area.

TutorVista.com's Surface Area of a Rectangular Prism Calculator – Provides tutorial information about rectangular prisms, a labeled diagram, step-by-step instructions for finding surface area, and example problems.

MiniWebTool.com's Surface Area of a Rectangular Prism Calculator – Provides a quick and easy way to find the surface area of a rectangular prism.

#### Volume

Basic-Mathematics.com's Volume of a Box Calculator – This is quick and easy to use. Just enter the box's length, width, and height and this will provide its volume.

TutorVista.com's Volume of a Rectangular Prism Calculator – Provides step-by-step instructions on how to find the volume of a rectangular prism and example problems.

KylesConverter.com's Volume of a Rectangular Prism Calculator – This fun tool features chalkboard-style diagrams as a visual aid for explaining how to find the volume of a rectangular prism.

MiniWebTool.com's Volume of a Rectangular Prism Calculator – Provides a quick and easy way to find the volume of a rectangular prism.

OnlineMSchool.com's Volume of a Rectangular Prism Calculator – In addition to figuring volume, this tool features easy-to-understand tutorial information about the properties of a prism.

### Spheres

#### Multiple Functions

CalculatorSoup.com's Sphere Calculator – This page features a sphere diagram and sphere formulas. When you know one variable, use it to find a sphere's radius, surface area, volume, and circumference.

EasyCalculation.com's Sphere Calculator – When you know the sphere's radius, use this to quickly find its volume and curved surface area.

WebMath.com's Find Things Out About Right Spheres – Use the drop down menus to enter your data and find a right sphere's radius, diameter, area, or volume. It includes quick tips about right spheres and a diagram.

RKM.com.au's Circle Sphere Calculator – This tool is quick and easy to use. Just enter one known value and it will find unknown values, including radius, diameter, circumference, circle area, sphere surface, and sphere volume.

TutorVista.com's Sphere Calculator – Features a labeled diagram, step-by-step instructions for using sphere formulas, and example problems. It can be used to find a sphere's volume, diameter, circumference, and surface area.

NCalculators.com's Sphere Calculator – Provides tutorial information about spheres and a labeled sphere diagram. It can be used to find volume and surface area.

HandyMath.com's Sphere Calculator – Can be used to find the diameter and volume of a sphere.

MeraCalculator.com's Sphere Calculator – Can be used to find the area and volume of a sphere. It features sphere formulas and an example problem with step-by-step instructions.

EndMemo.com's Sphere Calculator – This tool can be used to find the radius, area, and volume of a sphere depending on what you know about your sphere. It also provides a sphere cap calculation option.

NumberEmpire.com's Sphere Calculator – This page features a great sphere diagram. It can be used to find the area, volume, radius, or diameter of a sphere depending on which values you know.

#### Surface Area

Basic-Mathematics.com's Surface Area of a Sphere Calculator – This is quick and easy to use. Enter the radius of your sphere to find its surface area.

MinWebTool.com's Surface Area of a Sphere Calculator – This is cleanly designed and easy to use. It provides the surface area sphere formula.

#### Volume

1728.org's Partially-Filled Sphere Calculator – This tool and its diagram provides a great way to see the real world uses of what you're learning in your geometry study.

Basic-Mathematics.com's Volume of a Sphere Calculator – This is quick and easy to use. Enter the radius of your sphere to find its volume.

KylesConverter.com's Volume of a Sphere Calculator – This fun tool features chalkboard-style diagrams to make learning about figuring the volume of a sphere a little easier.

OnlineConversion.com's Volume of a Sphere Calculator – Provides a labeled sphere diagram and the sphere volume formula. It is quick and easy to use.

MiniWebTool.com's Volume of a Sphere Calculator – This is cleanly designed and easy to use. It provides the sphere volume formula.

__24 Advanced Solid Geometry Calculators__

### Annulus Volume

FormLoop.com's Annular Volume Calculator Widget – This tool is easy to use. Once you input your data, it provides a straightforward calculation. No tutorial information is provided.

### Capsules

#### Multiple Functions

CalculatorSoup.com's Capsule Calculator – This utility is easy to use and provides tutorial information, necessary formulas, and a diagram of a capsule. When you know 2 variables, you can use the calculator to find a capsule's radius, side length, surface area, volume, and circumference.

EasyCalculation.com's Capsule Calculator – Easy-to-use calculator will find a capsule's volume, surface area, and circumference when you enter its radius and side length.

Had2Know.com's Capsule Calculator – Can be used to find the volume and surface area of a capsule. It provides detailed tutorial information about capsules and the formulas used with them. It also features an example problem.

RechneOnline.de's Capsule Calculator – Enter a capsule's radius and cylinder height and this easy to use tool provides the surface area and volume. It also includes information explaining what a capsule is and the capsule formulas.

#### Volume

WebConversionOnline.com's Volume of a Capsule Calculator – This tool is quick and easy to use. It finds the volume of a capsule when you input its radius and height. Use the drop down menu to work with other shapes.

### Conical Frustums

#### Multiple Functions

CalculatorSoup.com's Conical Frustum Calculator – This utility is easy to use and provides tutorial information, conical frustum formulas, and a diagram. When you know the conical frustum's two radii and one other variable, it will find the height, slant height, volume, lateral surface area, and total surface area.

EasyCalculation.com's Conical Frustum Calculator – This tool is quick and easy to use. Enter your conical frustum's radius1, radius2, and height, and it will find the volume, slant height, lateral surface area, top surface area, base surface area, and total surface area.

1728.org's Right Circular Cone & Cone Frustum Calculator – This is easy to use and can find various properties of cones and cone frustums. It provides tutorial information, diagrams, and formulas for cones and frustums.

Had2Know.com's Surface Area and Volume of a Conical Frustum Calculator – Features easy to understand tutorial information and a sample problem.

#### Volume

Keisan.Casio.com's Volume of a Circular Truncated Cone Calculator – This is quick and easy to use when you need to find the volume, lateral surface area, and surface area of a truncated cone. It features the formulas used to find each of these properties.

Aqua-Calc.com's Volume of a Frustum Calculator – Features tutorial information about conical frustums and a list of formulas.

Calculator.Swiftutors.com's Truncated Cone Volume Calculator – This is easy to use and features some tutorial information along with a color-coded version of the formula used.

### Hemispheres

CalculatorSoup.com's Hemisphere Calculator – This easy-to-use utility provides some tutorial information, hemisphere formulas, and a diagram. When you know one variable, use it to find the hemisphere's radius, circumference, volume, curved surface area, and total surface area.

EasyCalculation.com's Hemisphere Calculator – This tool performs three functions for working with hemispheres. Enter the hemisphere's radius and it will find the volume, curved surface, and total surface area.

TutorVista.com's Hemisphere Calculator – This is easy to use. Find the volume and surface area of a hemisphere simply by inputting the radius. It provides instructions, formulas, and sample problems.

NCalculators.com's Hemisphere Calculator – Can be used to find the surface area and volume of a hemisphere when you know the radius. It provides the hemisphere formulas as a reference.

MeraCalculator.com's Hemisphere Calculator – In addition to finding the surface area and volume, this also finds a hemisphere's curved surface area. It provides an example (with formulas) for each property.

### Tubes

#### Multiple Functions

CalculatorSoup.com's Tube Calculator – This page explains what a tube is, provides needed formulas, and shows a diagram. When you know three variables (radii, wall thickness, circumference, and/or height), it can be used to figure a variety of other properties such as outer circumference, outer surface area, inner circumference, inner surface area, and more.

Keisan.Casio.com's Volume of a Hollow Cylinder Calculator – This is easy to use and also calculates a hollow cylinder's lateral surface area and surface area. It features the formulas used for hollow cylinders.

HandyMath.com's Volume, Diameter, and Length of a Cylindrical Tube Calculator – When you know two of the three needed variables, this tool will find the missing variable, giving you the tube's volume, diameter, or length.

OnlineConversion.com's Surface Area of a Tube Calculator and OnlineConversion.com's Volume of a Cylinder Pipe Calculator -- Each of these are quick and easy to use and features the formulas used to calculate the property presented.

#### Volume

EasyCalculation.com's Cylindrical Pipe Volume Calculator – This is quick and easy to use. Enter the outer radius, inner radius, and height and it will provide the cylindrical volume.