Health
BMI, calories, body metrics, and wellness calculators.
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BMI Calculator
Calculate Body Mass Index (BMI) from height and weight, and see the WHO adult category.
BMR Calculator
Estimate basal metabolic rate with Mifflin–St Jeor and see rough daily calorie needs by activity level.
Calorie & Macro Calculator
Estimate daily calorie needs from BMR and activity, with a simple goal adjustment and macro split.
Health calculators
Health calculators offer quick estimates like BMI, BMR, and daily calorie/macro targets. They are informational starting points — not diagnoses.
Read results carefully
BMI is a screening number
It does not know muscle mass, bone density, or medical history. Treat it as one signal among many.
Frequently asked questions
Is BMR the same as calories I should eat?
BMR is an estimate of resting burn. Activity multipliers approximate daily needs — individual needs vary.