Alcohol Sober-Up Time Calculator
Estimate how long until alcohol fully clears your body
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Enter your gender, weight, and the volume and proof of what you drank to estimate how long it takes for your body to fully metabolize the alcohol, using standard clearance rates (0.1g/kg/h for men, 0.08g/kg/h for women). It's handy if you want a rough idea of when you might be sober enough before driving or an important commitment, and everything runs right in your browser with no data sent to a server.
How to use
- Select your gender (male or female).
- Enter your weight in kilograms.
- Enter the total volume you drank (ml) and the alcohol proof (%).
- Check the estimated clearance time and pure alcohol consumed shown at the top.
FAQ
- Can I rely on this result to decide whether it's safe to drive?
- No. This tool uses average clearance rates for a rough estimate only — actual metabolism varies widely based on liver function, health, and whether you ate. Always rest well and never drive after drinking, regardless of the estimate.
- How do I enter a standard drink like a beer or glass of wine?
- Use the volume and alcohol percentage printed on the label — for example, a 500ml beer at 5% or a 150ml glass of wine at 12%.
- What if I had several drinks over the night?
- Add up the total volume and use the average proof of everything you drank, then enter those combined figures for an overall estimate.