🍺 BAC Calculator

Rough blood alcohol estimate using UK units. Never drink and drive.

Stone

Pounds

Weight (kg)

Sex

UK units consumed

Hours since first drink

About this tool

Rough blood alcohol estimate from UK units. Never drink and drive.

For guidance only. Results are estimates. Please speak to your GP or midwife for advice about your health.

Free, friendly health and fitness tools for the UK.

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