Estimate how many hours it takes for your body to process alcohol back down to zero BAC.
The liver metabolizes alcohol at a fairly steady average rate of about 0.015% BAC per hour, regardless of coffee, cold showers, or other myths. This calculator applies that average rate to estimate time to zero.
Hours to Sober = Current BAC ÷ 0.015
A BAC of 0.08% takes roughly 5.3 hours to fully metabolize.
This is a rough population-average estimate only - actual metabolism varies by individual, and impairment can persist even as BAC falls. Never drive after drinking; if in doubt, use a rideshare, taxi, or a sober driver.
Based on the average rate the body eliminates alcohol (roughly 0.015% BAC per hour).
No. Actual metabolism varies by individual — the only safe approach is to wait well beyond any estimate or not drive at all.
No — these common myths don't actually speed alcohol metabolism, which occurs at a fixed liver rate.