BAC Calculator

Estimate your blood alcohol content using the Widmark formula.

Number of Drinks

Drink Type

Custom ABV %

Drink Size

Size Unit

Units

Body Weight

Gender

Hours Since First Drink

Time Until Sober (BAC 0.00)-

⚠ This is an estimate only, not medical or legal advice. Never drive after drinking. Individual alcohol metabolism varies. When in doubt, don't get behind the wheel.