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Both calculators run independently β€” change the inputs on either side to compare results.

Medicine

Basal Metabolic Rate Calculator

Estimate the calories your body burns at complete rest using the Mifflin-St Jeor equation, then multiply by an activity factor to get Total Daily Energy Expenditure. Use the resulting kcal/day as a baseline for diet planning.

Fitness

Daily Calorie Needs Calculator

Estimate total daily calorie needs (TDEE) by combining the revised Harris-Benedict BMR formula with an activity multiplier. The number to eat at for maintenance, subtract from for fat loss, or add to for muscle gain.

Key differences

Basal Metabolic Rate CalculatorDaily Calorie Needs Calculator
CategoryMedicineFitness
Inputs required54
ResultTotal Daily Energy Expenditure (calories/day)Daily Calories Needed (kcal)
What it doesEstimate the calories your body burns at complete rest using the Mifflin-St Jeor equation, then multiply by an activity factor to get Total Daily Energy Expenditure. Use the resulting kcal/day as a baseline for diet planning.Estimate total daily calorie needs (TDEE) by combining the revised Harris-Benedict BMR formula with an activity multiplier. The number to eat at for maintenance, subtract from for fat loss, or add to for muscle gain.