Blood Alcohol Content (BAC) & Sobriety Time Calculator (Widmark)
Calculate estimated Blood Alcohol Content (BAC) percentage and hours until full sobriety (0.00%) using the clinical Widmark formula based on weight, sex, standard drinks, and elapsed time.
Calculator Inputs
Live Real-TimeCurrent Estimated Blood Alcohol Content (BAC)
Hours Remaining to Full Sobriety
1.33 hours
Peak Theoretical BAC
0.05%
Safety Notice: Active BAC in the bloodstream impairs reflexes and cognitive reaction time. Do not operate vehicles or heavy machinery.
Alcohol Absorption vs Elimination
Detailed Calculation Breakdown
Calculation Methodology
Widmark Formula: BAC = [Alcohol (g) / (Body Weight (g) * r)] - (0.015% * Elapsed Hours). Standard drink = 14g pure ethanol. Gender factor r = 0.68 (men) / 0.55 (women).
Important Legal & Educational Disclaimer
This tool provides mathematical BAC estimates for educational purposes only. Metabolism varies based on food intake, hydration, and liver enzymes. Never drive after drinking.
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
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