the United States · 1 × 750 ml at 12.5 %
What is your BAC after a bottle of wine?
Estimated with the model behind the Abvy app. As of September 2026.
The answer
≈0.089% BAC
peak for a 80 kg man, light meal, first drink at 20:00
| peak | 22:19 0.89‰ |
|---|---|
| under 0.8‰ again | 23:05after 3 h 10 min |
| back to zero | 04:56 after 9 h |
| pure alcohol | 74 g |
Rounded to ten minutes.
How this was calculated
750 ml at 12.5 % alcohol, started at 20:00 and sipped over 120 minutes, for a 80 kg man who had a light meal beforehand - the same pharmacokinetic model the Abvy app runs, not a rule of thumb. Real values vary by roughly ±20-30 % with hydration, medication and genetics, so read the number as the middle of a range.
The same drinks for other bodies
Body water decides how far the same alcohol spreads: a lighter person or a woman reaches a higher peak from identical drinks and needs longer to get back to zero.
| Weight | Peak | Back to zero |
|---|---|---|
| 50 kg | 1.22‰ | 11 h |
| 60 kg | 1.09‰ | 10 h 10 min |
| 70 kg | 0.98‰ | 9 h 30 min |
| 80 kg | 0.89‰ | 9 h |
| 90 kg | 0.81‰ | 8 h 30 min |
| 100 kg | 0.74‰ | 8 h |
| Weight | Peak | Back to zero |
|---|---|---|
| 50 kg | 1.56‰ | 13 h 10 min |
| 60 kg | 1.41‰ | 12 h 10 min |
| 70 kg | 1.29‰ | 11 h 30 min |
| 80 kg | 1.18‰ | 10 h 50 min |
| 90 kg | 1.09‰ | 10 h 10 min |
| 100 kg | 1.01‰ | 9 h 40 min |
Rounded to ten minutes. Enter your own weight, meal and pace in the calculator to see your evening as a curve.
The legal limit in the United States
0.8‰ is the limit for drivers in the United States (NHTSA, "Drunk Driving"). The estimate above says nothing about whether you may drive: reaction time and judgement suffer well below the limit, the model has a wide margin, and a breathalyser measures where this page only estimates. The only safe number for driving is zero.
For a 80 kg man the model lands back at zero about 9 h after the first drink and under 0.8‰ after about 3 h 10 min. A lighter body, an empty stomach or a faster pace push both later; the table above shows the spread.
Abvy runs this estimate live while you drink: every glass you log moves the curve and the time you'll be back at zero.
iPhone beta on TestFlight
Android beta on Google PlayAbvy estimates - it never measures. It is not a breathalyzer and can't tell you whether you're under a legal limit or fit to drive.