Understanding Blood Alcohol Content
BAC is the percentage of alcohol in your bloodstream. It's used to measure intoxication level. One standard drink contains about 14g of pure alcohol (12oz beer, 5oz wine, 1.5oz spirits). Your liver metabolizes approximately one standard drink per hour (0.015% BAC reduction per hour).
BAC Effects
0.02-0.05%: Relaxation, mild impairment, some loss of judgment
0.05-0.08%: Reduced coordination, impaired judgment, legally impaired in some countries
0.08-0.15%: Significant impairment, slurred speech, poor balance, illegal to drive in most places
0.15-0.30%: Severe impairment, vomiting, blackouts
>0.30%: Life-threatening, risk of coma or death
IMPORTANT Disclaimer
This calculator provides estimates only. Actual BAC varies with metabolism, food intake, medications, and individual factors. Never drive if you've been drinking. Legal limits vary by country. BAC continues rising for 30-90 minutes after last drink. Only time (not coffee, food, or showers) reduces BAC.
Quick Tips
- BMI alone doesn't reflect overall health
- TDEE varies based on activity level
- Consult a healthcare professional for medical decisions
Frequently Asked Questions
Wait until BAC is 0.00%. Even below legal limits, judgment and reaction time are impaired.
Food slows alcohol absorption but doesn't reduce BAC once alcohol is absorbed.
Approximately 0.015% per hour (one standard drink per hour for average person).
Women typically have lower body water percentage, leading to higher alcohol concentration.
No. Only time eliminates alcohol. Coffee, showers, and exercise don't reduce BAC.