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Embed the BAC (Blood Alcohol Content) Calculator

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Calculator

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12px

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Gender

Body Weight

30 kg250 kg

Standard Drinks Consumed

030

Hours Since First Drink

024

Estimated BAC

0.047

Estimated blood alcohol content as a percentage, using the Widmark formula. This is an approximation only. Never use it to judge whether it is safe to drive.

Time Until Sober

3h 9m

Estimated hours and minutes from now until your BAC returns to 0%, based on the same average elimination rate.

Time Until Under 0.08%

Already under 0.08%

Estimated time from now until your BAC drops under the standard 0.08% US legal driving limit. This is not the same as being safe to drive.

Estimated Impairment Level

A general effects classification for your current estimated BAC, based on published NHTSA and clinical reference ranges. Mild relaxation and slight impairment

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