Blood Alcohol Elimination Time Calculator
Estimate how long it takes for your blood alcohol concentration (BAC) to reach zero based on an average elimination rate.
Educational estimate; do not rely on it to determine driving safety.
Examples
- 0.08% BAC at 0.015% per hour ⇒ 5.33 hours
- 0.05% BAC at 0.015% per hour ⇒ 3.33 hours
FAQ
Is the elimination rate constant?
The calculator assumes a constant average rate, though real rates differ.
Can this tell me when it is safe to drive?
No. Always wait longer and use approved testing methods before driving.
What BAC should I enter?
Enter your current estimated BAC in percentage form, such as 0.08.
Additional Information
- Uses an average elimination rate of 0.015% BAC per hour.
- Actual metabolism varies with health, gender, and drinking history.