Calculator
Blood Alcohol Calculator
Calculate BAC using the Widmark formula. Shows impairment level, time to sober, and per-drink breakdown.
⚠️ For educational purposes only. Never drink and drive.
👤Your Profile
🍺Drinks
#1
📊Results
0.0107%
Sober / Safe
Peak BAC
0.0257%
Time to Sober
1.7h
Total Alcohol
14.0g
Legal Limit
0.08%
📈Per-Drink Breakdown
Drink #1: Beer (355 ml, 5%)0.0107%
📖How It Works
Widmark Formula:
BAC = (alcohol_grams / (weight_kg × r × 10)) − (0.015 × hours)
Where r = 0.68 (male) or 0.55 (female)
Alcohol grams = volume(ml) × ABV% × 0.789
Metabolism rate: ~0.015% BAC per hour