Health Calculators

BMI and daily calorie needs, calculated from the same underlying formulas clinicians and dietitians use as a starting point - not a diagnosis.

Both tools here are screening estimates rather than measurements: BMI is a ratio of weight to height that ignores muscle mass and fat distribution, and the calorie calculator's Harris-Benedict formula estimates basal metabolic rate from averages across a population, not from your individual metabolism. Both explicitly document their limitations on their own pages, because a number that looks precise (e.g. "22.86") should not be mistaken for a diagnosis.

• BMICalculate your Body Mass Index from weight and height, with category interpretation.
• CalorieEstimate daily calorie needs based on age, weight, height, and activity level.