This calculator provides an educational estimate. BAC varies significantly based on body composition, metabolism, food intake, medication, and pacing.
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Calculation Basis
The estimate reflects drink volume, ABV, elapsed time, body weight, and sex using a simplified Widmark-style formula.
This tool uses a simplified Widmark-style estimate based on alcohol volume, body weight, sex, and elapsed time since each drink. It is intended as an educational guide to help users understand why drink timing, strength, and body size matter.
Real blood alcohol concentration can differ substantially because of food intake, hydration, medication, body composition, and metabolic variation.
The BAC calculator is a practical companion to the clock and city pages. The clock tells you where the next social hour begins; this tool gives users a quick numerical estimate based on common drink inputs.
It is not medical advice and should be treated as a simplified educational calculation rather than a direct measurement.