BAC Calculator
Estimate your Blood Alcohol Content using the Widmark formula. Enter drinks, weight, gender, and time elapsed to see BAC and sobriety time.
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How to Use This BAC Calculator
Enter the number of standard drinks consumed, your body weight in pounds, your gender, and the number of hours since your first drink. The calculator uses the Widmark formula to estimate your current Blood Alcohol Content (BAC), whether you are over the legal limit, and approximately how long until your BAC returns to zero.