BAC Calculator
Calculator
Time to Zero
How to Calculate BAC
AI Assistant
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Time to Zero BAC Calculator
Find out how many hours until you're sober — based on your drinks, weight and timing.
Gender
Male
Female
Weight
kg
lb
Number of Drinks
Hours ago you started
Legal limit
US (0.08%)
UK (0.08%)
Australia (0.05%)
Europe (0.05%)
Japan (0.03%)
China (0.02%)
Calculate Time
Estimated Sober Time
—
Current BAC Level:
0.00%
Peak BAC:
0.00%
BAC Over Time
This calculator provides an estimate only. Actual BAC may vary based on individual factors. Never drink and drive.