BAC Calculator
A rough alcohol concentration estimate from body weight, drinks, and elapsed time.
Estimated BAC
0.082%
rough population estimate only
Standard drinks assumed3
Elapsed hours2
Estimated time to zero5.5 more hours (model only)
This Widmark-style estimate is highly imprecise and must never be used to decide whether to drive. Alcohol absorption and metabolism vary widely. Do not drive after drinking.
About the BAC Calculator
A rough alcohol concentration estimate from body weight, drinks, and elapsed time.
It runs entirely in your browser — nothing you type is sent to a server — and the result updates as you edit the inputs. Estimates are for educational and informational purposes only; see ourdisclaimer.
Common searches
- blood alcohol
- alcohol
- widmark
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