Drinks to BAC Calculator

Drinks to BAC Calculator. How many drinks to reach a BAC? Fast, accurate, private.

Simplified Widmark estimate — not for legal driving decisions.

Body weight

Number of drinks

Drink volume (ml)

ABV %

Hours since first drink

Estimated BAC

0.029%

Uses ~0.015%/hr elimination. Educational only.

Steps

Convert number and type of alcoholic drinks to estimated blood alcohol content over time.

Are results official?

No — quick estimates only. Confirm with your bank or provider.

Is data saved?

No. Calculations run in your browser.

Where is the full tool?

Each satellite links back to the main hub calculator.