Calculate Your BAC
Fill in the details below for your estimated blood alcohol level
Estimated BAC
0.00
% (g/dL)
0.00%
0.05%
0.10%
0.15%
0.20%
0.30%+
–
⚠️ Disclaimer: This calculator provides an estimate only and must not be used
to determine fitness to drive or for any legal purpose. Actual BAC varies with food intake,
medications, metabolism, and other factors. Always plan ahead – never drink and drive.
Widmark Formula
Based on the medically accepted formula used worldwide to estimate BAC
Metabolism Tracking
Accounts for alcohol elimination over time at 0.015% BAC per hour
Legal Limit Check
Instantly see if your estimated BAC exceeds the common 0.08% legal limit
Sobriety Countdown
Calculates estimated time until your BAC returns to 0.00%