BAC Calculator

Estimate your Blood Alcohol Content (BAC) using the Widmark formula. Enter your weight, sex, drinks consumed, and time elapsed since drinking.

Your Information

Drinks Consumed

Total pure alcohol consumed: 28g (0 standard drinks)

Results

Estimated Blood Alcohol Content
0.027
% BAC (g/100mL)
Mild impairment

Euphoria. Mild impairment of judgment, memory, and attention.

Scale: 0.000 – 0.300+ % BAC
Time Until Sober
~1.8h
at ~0.015%/hr elimination
Legal Limit (US)
UNDER
0.08% for drivers
BAC LevelEffects
< 0.020%Subtle effects
0.020–0.050%Mild impairment
0.050–0.080%Legal limit (US)
0.080–0.100%Significant impairment
0.100–0.150%Serious impairment
0.150–0.300%Severe impairment
Warning: This calculator provides estimates only. Never drink and drive. Individual BAC varies significantly with food intake, medications, tolerance, and metabolism. This tool is not a substitute for a breathalyzer. If impaired — do not drive.