BAC calculator

When can you drive again?

Use metric system

I identify as

Male

Female

Time since last drink

4h0m

Weight

80kgs

Remember your weight and sex (on your own device)

Warning notice

Please take into consideration that everyone reacts different to alcohol and these numbers may not be an accurate indication for how drunk you feel and how drunk you are. Only use this calculator for informational or educational purposes, but don't base your judgement of whether you should drive or not on these numbers.

BAC level after 4h 0m 0.000000

Good to drive in You're good to go.

Sober in You're good to go.