Morning after calculator

Work out your blood-alcohol content, and get a rough idea of when it'll leave your system.

The morning after calculator should not be used in place of sensible caution. If you're drinking, don't drive. If you're driving, don't drink.

Did you know it takes roughly an hour for a single unit of alcohol to leave your system?

But how do you work it out if you're hit the town and are still feeling delicate the next morning?

Our morning after calculator should give you a rough idea. Just enter your sex and weight, along with how much you've drunk. We'll do the rest and estimate your blood alcohol content (BAC) at the time you stopped drinking.

It'll also give you a conservative estimate at when all that booze should have left your system.

No BAC calculator is 100% accurate, as there are a number of factors that impact how your body processes alcohol. This tool should be used for reference purposes only, and shouldn't be used to determine whether you're fit to drive. If in doubt, do not drive.

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