BAC Calculator

DUI ON DEMAND

Blood Alcohol Content Calculator Blood Alcohol Content Calculator

Estimate your BAC based on body weight, sex, time drinking, food intake, and drinks consumed. This is only an estimate and should never be used to decide whether driving is safe or legal.

Your Information

Drinks Consumed

Add each drink type and quantity. The calculator uses standard drink assumptions to estimate BAC.

Disclaimer: This tool provides only a rough BAC estimate using generalized formulas. Actual BAC can vary based on metabolism, medications, hydration, medical conditions, pour size, timing, and many other factors. Never rely on this estimate to decide if you can drive.
Estimated BAC
0.00%
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A BAC estimate is not the same as legal proof. In a DUI case, the stop, the timing, the test method, and how law enforcement handled the investigation can all matter.

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Arrested for DUI?

Fast legal action matters. License issues, chemical testing issues, and evidence preservation can start immediately after an arrest.

This tool is for informational purposes only and is not legal or medical advice.
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