Blood Alcohol Recovery Time Calculator
This calculator uses the Widmark formula to estimate your current blood alcohol concentration and how long it will take your body to metabolize it down to a target level. This is an estimate only and should never be used to determine fitness to drive.
About this calculator
Estimate how long it will take for your body to metabolize alcohol back to a target BAC level using the Widmark formula.
Frequently Asked Questions
What is the Widmark formula?
The Widmark formula is a widely used method to estimate blood alcohol concentration based on alcohol consumed, body weight, biological sex, and time elapsed.
Is this calculator accurate enough to determine if I can drive?
No. This is only a rough estimate. Actual BAC varies significantly based on metabolism, food intake, medications, and other factors. Never drive after drinking.
How fast does the body metabolize alcohol?
On average, the body eliminates alcohol at a rate of about 0.015% BAC per hour, though this varies between individuals.