BMI · adults aged 20+
Calculate adult BMI from weight and height for ages 20 and over. Review the formula and limitations; BMI alone does not diagnose health.
Open calculatorExplore clearly scoped personal estimates.
Calculate adult BMI from weight and height for ages 20 and over. Review the formula and limitations; BMI alone does not diagnose health.
Open calculatorAdult BMI reference weight interval: use height, age. Review the formula, worked example and calculation steps.
Open calculatorResting energy expenditure · adult estimate: use weight, height, age. Review the formula, worked example and calculation steps.
Open calculatorDaily energy · supplied activity factor: use weight, height, age. Review the formula, worked example and calculation steps.
Open calculatorMacronutrients · supplied energy split: use energy amount to allocate, protein share, carbohydrate share. Review the formula, worked example and calculation steps.
Open calculatorEvery published calculator runs locally and includes its formula and working. Browse the formula library.