Blood Alcohol Content (Per Mille) Calculator
Estimate your blood alcohol level with the Widmark formula.
kg
mL
%
hours
Result
0,236765 ‰
Estimated blood alcohol: 0,236765 per mille (Private vehicle below legal limit (<0,50))
Result in all units
Step-by-step solution
per mille = pure alcohol / (weight × r)
What Is Blood Alcohol Content?
Blood alcohol level (per mille) is estimated based on the amount of alcohol consumed, body weight and sex. It is based on the Widmark formula.
Warning: The result is only a rough estimate; the actual value depends on many factors. Do not drive after drinking alcohol.
How is it calculated?
How Is It Calculated?
Per mille = alcohol (g) ÷ (body weight × r)
Distribution factor r: about 0,68 in men, about 0,55 in women.
- Enter the amount of alcohol consumed, body weight and sex.
Frequently Asked Questions
Can I rely on this value to drive?
No; the result is an estimate and varies from person to person. Drink-driving is illegal and dangerous.