Health & Fitness CalculatorsPrivate by design
Blood Alcohol Content (BAC) Estimator
Enter body weight, alcohol consumed, and time elapsed to estimate blood alcohol content using the Widmark formula.
How to use this tool
- 1Enter your sex, weight, and grams of alcohol consumed.
- 2Enter hours since your first drink.
- 3See the estimated BAC.
Frequently asked questions
Can I use this to decide if I'm safe to drive?+
No — never use this or any calculator to decide whether to drive. Individual metabolism varies enormously, and this is for education only, not a safety determination.
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