Drunk Driving: Blood Alcohol Content
Calculating Your Estimated Blood Alcohol Content (BAC)
Showing estimated percent of alcohol in the blood by number of drinks in relation to body weight. This percent can be estimated by:
- Count your drinks (1 drink equals 1 ounce of 100-proof liquor, one five ounce glass of table wine or one 12-ounce bottle of regular beer).
- Use the chart below and under number of "drinks" and opposite "body weight" find the percent of blood alcohol listed.
- Subtract from this number the percent of alcohol "burned up" during the time elapsed since your first drink. This figure is .015% per hour. (Example: 180 lb. man - 8 drinks in 4 hours / .167% minus (.015 x 4) = .107 %
| Body Weight |
Drinks | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
| 100 lbs. | .038 | .075 | .113 | .150 | .188 | .225 | .263 | .300 | .338 | .375 | .413 | .450 |
| 110 lbs. | .034 | .066 | .103 | .137 | .172 | .207 | .241 | .275 | .309 | .344 | .379 | .412 |
| 120 lbs. | .031 | .063 | .094 | .125 | .156 | .188 | .219 | .250 | .281 | .313 | .344 | .375 |
| 130 lbs. | .029 | .058 | .087 | .116 | .145 | .174 | .203 | .232 | .261 | .290 | .320 | .348 |
| 140 lbs. | .027 | .054 | .080 | .107 | .134 | .161 | .188 | .214 | .241 | .268 | .295 | .321 |
| 150 lbs. | .025 | .050 | .075 | .100 | .125 | .151 | .176 | .201 | .226 | .251 | .276 | .301 |
| 160 lbs. | .023 | .047 | .070 | .094 | .117 | .141 | .164 | .188 | .211 | .234 | .258 | .281 |
| 170 lbs. | .022 | .045 | .066 | .088 | .110 | .132 | .155 | .178 | .200 | .221 | .244 | .265 |
| 180 lbs. | .021 | .042 | .063 | .083 | .104 | .125 | .146 | .167 | .188 | .208 | .229 | .250 |
| 190 lbs. | .020 | .040 | .059 | .079 | .099 | .119 | .138 | .158 | .179 | .198 | .217 | .237 |
| 200 lbs. | .019 | .038 | .056 | .075 | .094 | .113 | .131 | .150 | .169 | .188 | .206 | .225 |
| 210 lbs. | .018 | .036 | .053 | .071 | .090 | .107 | .125 | .143 | .161 | .179 | .197 | .215 |
| 220 lbs. | .017 | .034 | .051 | .068 | .085 | .102 | .119 | .136 | .153 | .170 | .188 | .205 |
| 230 lbs. | .016 | .032 | .049 | .065 | .081 | .098 | .115 | .130 | .147 | .163 | .180 | .196 |
| 240 lbs. | .016 | .031 | .047 | .063 | .078 | .094 | .109 | .125 | .141 | .156 | .172 | .188 |
Attorney Stephen E. Mays practices in all areas of criminal and traffic defense throughout the entire State of Wisconsin. If you have been charged with drunk driving (DUI, OWI, or DWI), call drunk driving defense attorney Stephen E. Mays today for a free case review.
Copyright © 2007 Mays Law Office, Madison, Wisconsin. The information you obtain at this site is not, nor is it intended to be, legal advice. You should consult an attorney for individual advice regarding your own situation. You may reproduce materials available at this site for your own personal use and for non-commercial distribution. All copies must include this copyright statement.
