Blood Alcohol Calculator
Disclaimer: This is only a rough estimate based on population averages and does not take into account existing disease states, drug interactions, or age.
Patient weight:
kg
lbs
Percent of body capable of absorbing alcohol (Usual ranges):
Male
: 0.5 - 0.9 Average: 0.7
Female
: 0.45 - 0.7 Average: 0.55
Time spent drinking or time elapsed. Enter zero for acute ingestion.
Hours
Volume consumed:
ml
Fluid oz
Number of drinks:
See table below for common volumes and percentages.
Alcohol units:
percent
proof
(e.g. 5% or 100 proof)
Beverage
Usual Volume
Usual Concentration
Beer
12 or 16 oz
5.0 %
Wine
2.5 or 5oz
12.0 %
1 Shot
1.25 oz
80 proof
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