How To Calculate 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:
1.
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).
2.
Use the chart below and
under number of "drinks" and opposite "body weight" find
the percent of blood alcohol listed.
3.
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 (.015x4) = .107 %.
DRINKS
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
Created from NHTSA chart,
with modifications.
- 5 -
Andrew T. Coiner
629 Washington Paducah, KY 42001
Tel: 270-442-9268 Toll Free: 1-877-442-9268
Email:
acoiner@paducahlawyer.com
