🍺 BAC Calculator
Estimate blood alcohol content (BAC) based on drinks, weight, time, and gender.
⚠️ This calculator provides estimates only. Never drink and drive.
Estimated BAC
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BAC Calculator
Estimate your blood alcohol content using the Widmark formula. See how your BAC changes over time as your body metabolizes alcohol.
Frequently Asked Questions
How is BAC estimated?
Using the Widmark formula: BAC = (Standard Drinks × 0.6 / (Weight × r)) - (0.015 × Hours). Where r = 0.68 for men, 0.55 for women.
What is the legal BAC limit?
In most US states, the legal driving limit is 0.08%. Some countries have limits as low as 0.02% or zero tolerance.
Is this calculation accurate?
This provides an estimate only. Actual BAC varies based on food intake, medications, liver function, and individual metabolism.