Health Calculators

Free health calculators for BMI, basal metabolic rate, and other body composition measurements. Fast, browser-based tools — no sign-up required.

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BMI Calculator

Calculate your BMI in imperial or metric units, see your WHO weight category, and find the healthy weight range for your height.

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BMR Calculator

Estimate your Basal Metabolic Rate (BMR) and daily calories (TDEE) from your age, sex, height, weight, and activity level. Works for adults, teens, and kids, with a choice of formula for adults.

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Blood Pressure Calculator

Enter your systolic and diastolic readings to classify your blood pressure under AHA/ACC 2017 or ESC/ESH 2018 guidelines and compute Pulse Pressure and Mean Arterial Pressure.