This blood alcohol content (bac) reference table shows the estimated BAC for a range of standard drinks values, assuming a body weight of 80 kg, a distribution ratio (0.68 men, 0.55 women) of 0.68 and a hours since first drink of 2. Every figure is computed with the same engine that powers our Blood Alcohol Content (BAC) Calculator, so the numbers are exact.
| Standard drinks | Estimated BAC |
|---|---|
| 1 | 0.000 |
| 2 | 0.021 |
| 3 | 0.047 |
| 4 | 0.073 |
| 6 | 0.124 |
| 8 | 0.176 |
| 12 | 0.279 |
| 20 | 0.485 |
| 28 | 0.691 |
| 40 | 0.999 |
How to use this table
Find the row closest to your standard drinks and read across to the estimated BAC. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Blood Alcohol Content (BAC) Calculator for a precise answer.
Need a value that is not in the table? — the Blood Alcohol Content (BAC) Calculator does it instantly, for free, with the formula and a worked example built in.
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