This page is best used for alcohol-risk education, not for permission. It helps people understand how drink count, alcohol strength, body weight, sex, and elapsed time can change a simplified BAC estimate, and it reinforces a conservative approach to safety.
It is just as important to be clear about what it does not do. It does not replace a breath or blood test, it does not give legal advice, and it cannot tell you that driving or other risky activity is safe. If you use it as a green light, you are asking it to do something it was never built to do.
The current page uses kilograms for body weight. Weight affects the estimated alcohol distribution in the model, which is why the same drinks can produce different estimates for different body sizes.
The page uses a very simplified distribution coefficient: 0.68 for male and 0.55 for female. This is only a model assumption and does not mean real individual differences are fully captured.
No. The page is only for simplified estimation and risk awareness, and it should never be used to make driving or safety decisions.
Real BAC depends on food, drinking speed, individual metabolism, medication, body composition, and the testing method, and the current page does not model those differences.
No. The current page uses generic warning language and does not tailor the result to your country, state, or region.
The page subtracts a fixed hourly metabolism rate, so the value falls over time in the model, but that does not mean every person metabolizes alcohol the same way.
Calculate blood alcohol content and intoxication level