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Blood alcohol (BAC)

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Per mille0.2882 ‰
Until sober (approx.)1.92 h

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Worked example

Given: Standard drinks (10 g) = 3; Weight = 75 kg; Sex = Male; Hours since first drink = 2

Result: Per mille = 0.2882 ‰; Until sober (approx.) = 1.92 h

How it is calculated

1. Enter the values you know. 2. The calculator converts them to base units and applies the formula. 3. The result is shown in the unit you choose.

Frequently asked questions

How do I calculate it?

Given: Standard drinks (10 g) = 3; Weight = 75 kg; Sex = Male; Hours since first drink = 2. Result: Per mille = 0.2882 ‰; Until sober (approx.) = 1.92 h.

Is the calculator free and private?

Yes. It is free, needs no sign-up and runs in your browser — the numbers you type stay on your device.

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Updated November 9, 2026