BAC Calculator

BAC Calculator

Calculate your estimated Blood Alcohol Content based on drinks consumed, weight, gender, and time elapsed. This calculator uses the Widmark formula for accurate BAC estimation.

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Modify the values and click the Calculate button to use
Amount of Alcohol Consumed
Amount Size ABV
%
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Result
Estimated BAC
0.00%
Total Alcohol Consumed 0 oz
Total Standard Drinks 0
Time to Zero BAC 0 hours
Status Sober

BAC Over Time

⚠️ Important Disclaimer

This calculator provides estimates only. Never drink and drive. BAC varies based on metabolism, food intake, medications, and other factors. Use a designated driver, taxi, or rideshare if you've been drinking.