DO NOT DRIVE BASED ON THESE RESULTS. This BAC calculator provides an estimate only. By using this calculator you accept full legal responsibility for your actions and release this site from all liability.
Drunk Calculator

Estimate BAC from drinks, ABV, and time

Sex

Step 1 of 3

Breathalyzers See how drunk you actually are

BACtrack S80
Most accurateView →
BACtrack C6
KeychainView →
BACtrack C8
Phone appView →
BACtrack Go
Budget pickView →

Espresso Martini BAC Calculator

An Espresso Martini is about 3.5 oz (104 ml) at roughly 20% ABV — a little over one standard drink, plus a caffeine kick that can mask how much you have had. Enter your weight, sex, and when you started to estimate your BAC. The Espresso Martini is already filled in above.