What is BAC?
BAC stands for "blood alcohol content" and it is a measurement of blood alcohol concentration. BAC amount is shown through the estimated percent of alcohol in the blood by the number of drinks in relation to body weight. This percent can be estimated by:
- Counting 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).
- Using the chart below and under number of “drinks” and opposite “body weight” find the percent of blood alcohol listed.
- Subtracting 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 (.015×4) = .107 %
Blood Alcohol Estimator Chart
| BODY WEIGHT | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100 lb. | .038 | .075 | .113 | .150 | .188 | .225 | .263 | .300 | .338 | .375 | .413 | .450 |
| 110 lb. | .034 | .066 | .103 | .137 | .172 | .207 | .241 | .275 | .309 | .344 | .379 | .412 |
| 120 lb. | .031 | .063 | .094 | .125 | .156 | .188 | .219 | .250 | .281 | .313 | .344 | .375 |
| 130 lb. | .029 | .058 | .087 | .116 | .145 | .174 | .203 | .232 | .261 | .290 | .320 | .348 |
| 140 lb. | .027 | .054 | .080 | .107 | .134 | .161 | .188 | .214 | .241 | .268 | .295 | .321 |
| 150 lb. | .025 | .050 | .075 | .100 | .125 | .151 | .176 | .201 | .226 | .251 | .276 | .301 |
| 160 lb. | .023 | .047 | .070 | .094 | .117 | .141 | .164 | .188 | .211 | .234 | .258 | .281 |
| 170 lb. | .022 | .045 | .066 | .088 | .110 | .132 | .155 | .178 | .200 | .221 | .244 | .265 |
| 180 lb. | .021 | .042 | .063 | .083 | .104 | .125 | .146 | .167 | .188 | .208 | .229 | .250 |
| 190 lb. | .020 | .040 | .059 | .079 | .099 | .119 | .138 | .158 | .179 | .198 | .217 | .237 |
| 200 lb. | .019 | .038 | .056 | .075 | .094 | .113 | .131 | .150 | .169 | .188 | .206 | .225 |
| 210 lb. | .018 | .036 | .053 | .071 | .090 | .107 | .125 | .143 | .161 | .179 | .197 | .215 |
| 220 lb. | .017 | .034 | .051 | .068 | .085 | .102 | .119 | .136 | .153 | .170 | .188 | .205 |
| 230 lb. | .016 | .032 | .049 | .065 | .081 | .098 | .115 | .130 | .147 | .163 | .180 | .196 |
| 240 lb. | .016 | .031 | .047 | .063 | .078 | .094 | .109 | .125 | .141 | .156 | .172 | .188 |
This information may only give an estimation. Due to variations in absorption and elimination rates, as well as many other factors, it is impossible to accurately predict a blood alcohol level with this limited amount of information.
If you are facing DUI charges, don't hesitate to contact the team at Hulnick, Stang, Gering & Leavitt, P.A. for help today.