Understanding BAC Levels
[800+ word educational content placeholder — BAC levels explained, effects at each level, factors that affect BAC]
BAC Level Chart
Estimated BAC after 1 hour of drinking, moderate food intake.
⚠ Estimates only. Not a breathalyzer replacement.
| Drinks ↓ / Weight → | 100lb | 120lb | 140lb | 160lb | 180lb | 200lb | 220lb | 250lb |
|---|---|---|---|---|---|---|---|---|
| 1 | 0.02 | 0.02 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 |
| 2 | 0.06 | 0.05 | 0.04 | 0.03 | 0.03 | 0.02 | 0.02 | 0.02 |
| 3 | 0.10 | 0.08 | 0.07 | 0.06 | 0.05 | 0.04 | 0.04 | 0.03 |
| 4 | 0.14 | 0.11 | 0.10 | 0.08 | 0.07 | 0.06 | 0.06 | 0.05 |
| 5 | 0.18 | 0.15 | 0.12 | 0.11 | 0.09 | 0.08 | 0.07 | 0.06 |
| 6 | 0.22 | 0.18 | 0.15 | 0.13 | 0.11 | 0.10 | 0.09 | 0.08 |
| 7 | 0.26 | 0.21 | 0.18 | 0.15 | 0.14 | 0.12 | 0.11 | 0.09 |
| 8 | 0.29 | 0.24 | 0.21 | 0.18 | 0.16 | 0.14 | 0.13 | 0.11 |
| 9 | 0.33 | 0.27 | 0.23 | 0.20 | 0.18 | 0.16 | 0.14 | 0.12 |
| 10 | 0.37 | 0.31 | 0.26 | 0.23 | 0.20 | 0.18 | 0.16 | 0.14 |
Disclaimer:This calculator provides rough estimates only based on average metabolism rates. It should NOT be used to determine whether you are fit to drive or operate machinery. Individual BAC varies based on metabolism, medications, health conditions, food intake, and many other factors. The only reliable way to measure BAC is with a calibrated breathalyzer or blood test. Never drink and drive. If you need help with alcohol, call SAMHSA: 1-800-662-4357.
FAQ
How do I read a BAC chart?
Find your body weight across the top and the number of drinks down the left side. The intersection shows your estimated BAC after 1 hour of drinking. Green means safe, yellow means buzzed, orange means over the legal limit, and red means dangerously impaired.
Why are BAC charts different for men and women?
Men and women have different body water percentages. Men average about 68% body water, while women average about 55%. Since alcohol distributes through body water, the same drinks will produce a higher BAC in women at the same body weight.