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BAC Calculator

Estimate blood alcohol content (BAC) from standard drinks consumed, body weight, sex and time using the Widmark formula.

1 standard drink ≈ 14g alcohol (12oz beer, 5oz wine, 1.5oz spirits)

Estimated BAC
1.954%

This is a rough estimate for education only — actual BAC is affected by food, medications, and individual metabolism. Never use this to decide whether it's safe to drive.

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