Blood Alcohol Level Chart: Are You Too Drunk to Legally Drive?

Use the blood alcohol level chart to estimate how many drinks it takes to put your blood alcohol concentration (BAC) above the legal limit.

In every state, it’s illegal to drive with a blood alcohol concentration (BAC) of .08% or more. But everyone absorbs and metabolizes alcohol at different rates, and there are lots of factors that affect BAC. So there’s no exact formula for determining how many drinks equates to a given BAC level. The chart below, however, gives BAC estimates that correspond to number drinks consumed and body weight. (Also, check out our BAC calculator.)

 

Weight Number of Drinks
1 2 3 4 5 6 7 8 9
100 0.032 0.065 0.097 0.129 0.162 0.194 0.226 0.258 0.291
120 0.027 0.054 0.081 0.108 0.135 0.161 0.188 0.215 0.242
140 0.023 0.046 0.069 0.092 0.115 0.138 0.161 0.184 0.207
160 0.020 0.040 0.060 0.080 0.101 0.121 0.141 0.161 0.181
180 0.018 0.036 0.054 0.072 0.090 0.108 0.126 0.144 0.162
200 0.016 0.032 0.048 0.064 0.080 0.097 0.113 0.129 0.145
220 0.015 0.029 0.044 0.058 0.073 0.088 0.102 0.117 0.131
240 0.014 0.027 0.040 0.053 0.067 0.081 0.095 0.108 0.121

 

USING THE CHART

  • One drink = 1.5 ounces of hard liquor, 12 ounces of beer, or five ounces of wine.
  • Blue = Impaired driver.
  • Red = BAC of .08% or greater, a “per se” DUI in every state.

Disclaimer

The BAC values in the above chart are only estimates. You shouldn’t rely on the accuracy of these estimates. The chart doesn’t account for all the factors that can affect BAC levels. If you’ve been drinking, it’s always best to let someone else drive. 

DUI Laws by State

Follow the links below to find the DUI laws in your state.

Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
D.C.
Florida
Georgia
Hawaii
Idaho Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming

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