BAC Estimator

Estimate BAC from drinks, body weight, sex, and time (basic).

Sex

Weight (kg)

Standard drinks

Hours since first drink

Note: this is a rough estimate, not medical advice.

Result—

Example: 3 drinks, 80 kg, 2 hours → ~0.04%

Formula

BAC ≈ (Alcohol ÷ (r × weight)) − (0.015 × hours)