A blood alcohol helps you calculate blood alcohol values accurately and instantly.
Estimate your Blood Alcohol Content (BAC) using the Widmark formula.
Widmark formula: BAC = (drinks × 3.14 / (weight_lbs × r)) − (hours × 0.015). r = 0.68 for males, 0.55 for females. Each standard drink ≈ 14g alcohol. Metabolism removes ~0.015% per hour.
The Blood Alcohol Calculator uses standard formulas to calculate your results. Enter your values in the input fields and click Calculate to see instant results.
Yes, the Blood Alcohol Calculator on CalcMaster is completely free to use with no signup required. Your data stays in your browser and is never sent to any server.
The Blood Alcohol Calculator uses verified formulas and provides accurate estimates for informational purposes. Results are calculated instantly in your browser.