Blood Alcohol Content (BAC) Calculator

Find out your blood alcohol level in per mille with this user-friendly BAC calculator—and know if you're within the legal driving limit based on your inputs.

Gender and weight

kg

Alcohol amount

ml
%
h

Total

Blood alcohol content

0.067 ‰

Time until allowed to drive (0.05 ‰)

in 59 minutes

Time until sober (0 ‰)

in 3 hours and 56 minutes

Latvian Road Traffic Law officially permitted blood alcohol concentration for drivers: 0.05 per mille (‰) or 0.02 per mille (‰) for new drivers (under 2 years licensed)