BAC estimation tool
Blood Alcohol Content (BAC) Calculator
Estimate BAC with a clean Widmark-style calculator that updates instantly as you change weight, drinks, and elapsed time.
Scientific note: sex assigned at birth is used here only as a simplified distribution factor in the Widmark equation. Real-world alcohol absorption varies by body composition, medications, food, and many other factors.
Estimated BAC
0.069%
Updated in real time.
Formula
Widmark equation
With a 0.016 per hour reduction.
Safety
No driving guidance
Use this as a learning tool only.