Blood Alcohol Content Calculator
Blood Alcohol Content Calculator
Scientific tool to estimate your BAC level and understand alcohol metabolism
Understanding Blood Alcohol Content
Blood Alcohol Content (BAC) measures the percentage of alcohol in your bloodstream. Our calculator uses the Widmark formula, the gold standard for BAC estimation.
Key Factors Affecting BAC
- Body Weight: Heavier individuals generally process alcohol more effectively
- Biological Sex: Women typically have higher BAC due to lower water content
- Metabolism Rate: Average 0.015% BAC reduction per hour
- Food Intake: Slows alcohol absorption rate
Frequently Asked Questions
What's considered legally drunk?
Most countries set the legal limit at 0.08% BAC, but impairment begins at 0.02%.
How long until I'm sober?
Use our calculator's duration input to estimate when you'll reach 0% BAC.
Can I cheat a breathalyzer?
No. Common myths about beating tests are dangerous and ineffective.
Safety Guidelines
- Never drive with BAC > 0.00%
- Wait 1 hour per standard drink before driving
- Alternate alcoholic drinks with water