Blood Alcohol Calculator
Estimate your Blood Alcohol Concentration (BAC) using the Widmark formula. See how many hours until you're sober and compare against legal driving limits.
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Estimated BAC
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Time Until Sober
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Under Legal Limit
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Peak BAC
BAC Levels & Effects
Disclaimer: This is a rough estimate using the Widmark formula. Actual BAC varies by metabolism, food intake, medications, and individual factors. Never drink and drive.
Recent Calculations
What Is BAC?
Bac gauges your daily wellness by scoring sleep, hydration, and physical activity.
Frequently Asked Questions
What are the recommended targets?
Adults should aim for 7-9 hours of sleep, 64 oz of water, and 10,000 steps per day.