Is this safe to drive by?

Absolutely not. Many factors (food, sleep, medication) throw the estimate off. Use a real breathalyzer, or better, just don't drive.

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Blood Alcohol Calculator

Estimate your current BAC using the Widmark formula. Educational only — never rely on this to decide if you can drive.

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Standard drinks

Hours since first drink

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Is this safe to drive by?: Absolutely not. Many factors (food, sleep, medication) throw the estimate off. Use a real breathalyzer, or better, just don't drive.