What the tool does, how to run it, and what to expect from the result.
Estimate blood alcohol content from standard drinks, body weight, sex and time with the Widmark formula, plus roughly how long until it is back to zero. It is an estimate for general guidance and is not medical advice; talk to a professional for personal health decisions.
A quick way to understand who this helps, what it solves, and where it connects next.
People tracking fitness, nutrition, and everyday health goals.
A quick, private health estimate without an account or app install.
Short answers for the questions people usually have before trying a utility like this.
Yes. It is completely free, with no sign-up, no watermark, and no usage limits.
No. Everything runs locally in your browser, so your details never leave your device and the tool works offline.
It is a rough estimate. Food, drink strength, medication, liver function and body composition all move real BAC, often by a lot. Never use an estimate to decide whether you can drive; if you have been drinking, do not drive.
On average about 0.015% BAC per hour, and nothing speeds it up: coffee, water or a shower do not lower blood alcohol.
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Enter your numbers and the result updates live in your browser. Nothing is uploaded and no server is used.
Calculations run locally in your browser; nothing is uploaded. An estimate, not medical advice.