3 tools
Free Health Calculators
Health estimates with their assumptions stated plainly.
Health
BAC Calculator
Estimate your blood alcohol content with the Widmark formula from your drinks, weight, sex, and time — plus the hours until you'd be under the limit and sober. An educational estimate only. Free, no signup.
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Health
BMI Calculator
Enter your height and weight — imperial or metric — to see your body mass index, WHO category, and the healthy weight range for your height. Educational, free.
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Health
Calorie Calculator
See how many calories you burn a day (TDEE) from the Mifflin-St Jeor equation and activity level, with maintain, lose, and gain targets. Educational, free.
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