Health Logo. Calculate BAC

BAC Calculator.

IMPORTANT: If you feel in any way impaired please call a friend, a cab or use a mobile booking service like Lyft or Uber. This tool is for educational purposes only. Your metabolic rate, age & how bartender pours drinks may significantly impact your BAC.

Sobriety Calculator

Your Weight:
Time drinking: hours minutes
12 oz beers Proof
5 oz glass of table wine Proof
1.5 oz spirit shots Proof
mixed drinks shots per mixed drink*


BAC Percentage:
BAC Analysis:
Hours until sober:
Hours until below 0.08%:

* Different mixed drinks contain varying amounts of shots in them. Most mixed drinks contain the equivalent of about 1.33 to 1.66 shots of 80-proof alcohol in them, though a Martini or Manhattan has about 2 shots of alcohol while a Long Island Iced Tea or Zombie have about 3 shots each. The above mixed drink calculation is based upon an 80-proof liquor. If your mixed drinks have a different proof then you would adjust the shots per drink to compensate for the different proof. For example, if you had 2 shots of 4 proof alcohol per mixed drink that would be like having 1 80 proof shot in a mixed drink. If you were drinking Bacardi 151 that would be calculated as about 2 shots per actual shot as 151 is almost double 80.

Standard Drink

Standard Drink.

Image courtesy the NIAAA.

Drink Type Volume Alcohol Content Proof
Beer can 12 oz 5% 10
Malt liquor 8 oz to 9 oz 7% 14
Table wine glass 5 oz 12% 24
Distilled spirit shot 1.5 oz 40% 80

Alcohol Proof Ratings

Type Detail Alcohol Percent Proof
Beers Pilsner 3% to 6% 6 to 12
Beers Lager 4% to 5% 8 to 10
Beers Porter 4% to 5% 8 to 10
Beers Brown Ale 4% to 6% 8 to 12
Beers India Pale Ale (IPA) 6% to 7% 12 to 14
Beers Stout 5% to 10% 10 to 20
Misc Cider 4% to 8% 8 to 16
Misc Alcohol pops 3% to 7% 6 to 14
Misc Wine Coolers & Breezers 4% to 7% 8 to 14
Wines Sparkling wine 8% to 12% 16 to 24
Wines Table wine 9% to 14% 18 to 28
Wines Restina 10% to 11% 20 to 22
Wines Dry White 10% to 12% 20 to 24
Wines Cabernet 11% to 14% 22 to 28
Wines Barley 11% to 15% 22 to 30
Fortified Wines Sherry 17% to 22% 34 to 44
Fortified Wines Marsala 15% to 17% 30 to 34
Fortified Wines Madeira 15% to 18% 30 to 36
Fortified Wines Vermouth 15% to 18% 30 to 36
Fortified Wines Port 16% to 20% 32 to 40
Fortified Wines Bum 15% to 20% 30 to 40
Spirits Light Liqueurs 15% to 25% 30 to 50
Spirits Vodka 35% to 50% 70 to 100
Spirits Rum 37.5% to 57% 75 to 114
Spirits Whiskey 40% to 53.3% 80 to 106.6
Spirits Gin 37.5% 75
Spirits Tequila 40% to 50% 80 to 100
Spirits Sake 14% to 16% 28 to 32
Spirits Bourbon 51% to 79% 102 to 178
Spirits Brandy 40% to 45% 80 to 90
Spirits Cask Strength Wiskey 60% 120
Spirits Absinthe 55% to 90% 110 to 180
Spirts German Schnapps 40% to 53.3% 80 to 106.6
Spirts Everclear 75% to 95% 150 to 190
Spirits Neutral Grain Spirits 95% 190
Spirits Rectified Spirits 96% 192
Spirits Absolute Alcohol 96% to 98% 192 to 196

IMPORTANT: If you feel in any way impaired please call a friend, a cab or use a mobile booking service like Lyft or Uber. Many people can vastly exceed the legal limits for driving without showing slurred speech or obvious physical signs of impairment. Reaction times are important while driving and anything that slows your reaction time could cost a life.

About Our Calculator

This calculator will help you estimate your blood alchohol level. This tool only attempts to calculate rough estimates and many other factors can impact BAC and the influence of alchohol on a person's ability to drive.

  • A person with low tolerance may be adversely impacted by alchohol at a level significantly lower than the legal limit.
  • Some prescription drugs other circumstances may impact the ability of the liver to process alchohol. Even something as seemingly benign as a tonail fungus treatment may have a dire impact.
  • The above calculator presumes a constant rate of drinking, which rarely happens in relality. Many people start slowly and drink more quickly over time without realizing a change of pace. If you drink over a multi-hour period slowly and binge drink at some point near the end of the drinking period then your BAC will likely be significantly higher than a simplistic estimation tool may suggest.

Drunk Driving Stats

Do not use the above estimation tool or the precise legal limits to justify risky behavior. Please call a cab.

  • In 2014 9,967 people in the United States were killed in alchohol-impaired crashes. - source: CDC
  • Every day 28 people in the United States die from drunk driving. - source: CDC
  • Every 2 minutes a person is injured from drunk driving. - source: NHTSA
  • Drunk driving costs the United States more than $132 billion each year. - source: PIRE

Acronyms

Different states use different terms to describe drunk driving. Here are some of the common acronyms and what they mean.

DUI
Driving Under the Influence
DWI
Driving While Intoxicated
OUI
Operating Under the Influence
OWI
Operating While Intoxicated

State Legal Limits as of 2017

Refusing to take a breath test may result in a license revocation and/or blood test. In addition to using different names for driving offenses, states also have enhanced penalty levels for higher levels of alchohol and zero tolerance levels for minors below the age of 21 and people on other court ordered restrictions. Visit your state department of transportation and official state government websites for more legal information and to keep up with the latest changes to your driving laws.

State PBAC Level Zero Tolerance Enhanced Penalty
Alabama 0.08 0.02 0.15
Alaska 0.08 0.00 0.15
Arizona 0.08 0.00 0.15
Arkansas 0.08 0.02 0.15
California 0.08 0.01 0.15
Colorado 0.08 0.02 0.17
Connecticut 0.08 0.02 0.16
Delaware 0.08 0.02 0.16
DC 0.08 0.00 0.20
Florida 0.08 0.02 0.20
Georgia 0.08 0.02 0.15
Hawaii 0.08 0.02 N/A
Idaho 0.08 0.02 0.20
Illinois 0.08 0.00 0.16
Indiana 0.08 0.02 0.15
Iowa 0.08 0.02 0.15
Kansas 0.08 0.02 0.15
Kentucky 0.08 0.02 0.18
Louisiana 0.08 0.02 0.15
Maine 0.08 0.00 0.15
Maryland 0.08 0.00 0.15
Massachusetts 0.08 0.02 0.20
Michigan 0.08 0.00 0.17
Minnesota 0.08 0.00 0.20
Mississippi 0.08 0.02 N/A
Missouri 0.08 0.02 0.15
Montana 0.08 0.02 0.16
Nebraska 0.08 0.02 0.18
Nevada 0.08 0.02 0.18
New Hampshire 0.08 0.02 0.16
New Jersey 0.08 0.01 0.15
New Mexico 0.08 0.02 0.16
New York 0.08 0.02 0.18
North Carolina 0.08 0.00 0.16
North Dakota 0.08 0.02 0.18
Ohio 0.08 0.02 0.17
Oklahoma 0.08 0.00 0.15
Oregon 0.08 0.00 0.15
Pennsylvania 0.08 0.00 0.16
Rhode Island 0.08 0.02 0.15
South Carolina 0.08 0.02 0.15
South Dakota 0.08 0.02 0.17
Tennessee 0.08 0.02 0.20
Texas 0.08 0.00 0.15
Utah 0.08 0.00 0.16
Vermont 0.08 0.02 0.16
Virginia 0.08 0.02 0.15
Washington 0.08 0.02 0.15
West Virginia 0.08 0.02 0.15
Wisconsin 0.08 0.00 0.17
Wyoming 0.08 0.02 0.15