4 FOCUSED TOOLS
Adult energy estimates calculators
Explore named resting-energy equations and transparent activity assumptions.
Choose the right calculation
Population equations and MET values are estimates rather than personal measurements. Activity multipliers can introduce substantial uncertainty. Outputs describe expenditure models, not prescribed intake, weight targets or treatment.
Find a tool for your question
BMR Calculator
Estimate adult resting energy expenditure using the simplified Mifflin–St Jeor equation.
TDEE Calculator
Estimate adult daily maintenance calorie needs from height, weight, age and a chosen activity multiplier.
Calories Burned Calculator
Estimate gross activity energy expenditure using an entered MET value.
Macro Calculator
Convert your chosen daily calorie amount and macronutrient percentages into grams of protein, carbohydrate and fat.
Is a BMR or TDEE estimate a calorie-intake prescription?
No. It is a modelled expenditure value. It does not account for every personal or clinical factor or prescribe what an individual should eat.
Useful next steps in other categories
Kilograms to Pounds Converter
Convert kg to lb with an explicit conversion factor.
Centimetres to Feet and Inches Calculator
Express a non-negative height as whole feet and a decimal inch remainder.