Health
BMI, calories, alcohol and more.
BMI calculator
Work out your body mass index from height and weight and see your CDC category: underweight, healthy, overweight or obesity class 1-3.
Calorie calculator
Estimate your daily calorie needs (TDEE) from the Mifflin-St Jeor equation, then adjust by 500 kcal to lose or gain about 1 lb per week.
Ideal weight calculator
Get a reference healthy weight range in pounds from the Lorentz formula, to cross-check against BMI, waist size and body-fat percentage.
Blood alcohol calculator
Estimate your blood alcohol concentration with the Widmark formula against the 0.08% BAC limit. Educational only, never a basis for deciding to drive.
Biological age calculator
Estimate your body's functional age from 10 lifestyle habits: activity, diet, sleep, smoking, alcohol, stress. Indicative, not a medical test.