Blood Alcohol Calculator

Free Blood Alcohol Calculator — calculate and compare options instantly. No signup required.

lbs
3
1 hrs

⚠ WARNING: This is a rough estimate only. Actual BAC varies with metabolism, food intake, medications, and many other factors. NEVER drive after drinking. If in doubt, don't drive.

Estimated BAC

0.060%

Impaired — reduced coordination

Impairment Status

Impaired — reduced coordination

Estimated Time Until Sober

4 hours

Important Disclaimer

This calculator provides rough estimates only. Individual results vary greatly. Never rely on a BAC calculator to determine if it is safe to drive. When in doubt, use a rideshare or designated driver.

How to Use the Blood Alcohol Calculator

  1. 1. Enter your values — fill in the input fields with your numbers.
  2. 2. Adjust settings — use the sliders and selectors to customize your calculation.
  3. 3. View results instantly — calculations update in real-time as you change inputs.
  4. 4. Compare scenarios — adjust values to see how changes affect your results.
  5. 5. Share or print — copy the link, share results, or print for your records.

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