BAC Calculator

Estimate your Blood Alcohol Concentration

Body Weight (lbs)

Gender

Number of Drinks

Hours Drinking

Drink Type

Estimated BAC--

Status--

Time to Sober (est.)--

BAC Limits

Legal driving limit: 0.08% (all US states). Impairment begins as low as 0.02%. At 0.15%+, severe impairment. This calculator is an estimate only — actual BAC varies by metabolism, food intake, and other factors. Never drink and drive.