RMR Calculator

Calculate your Resting Metabolic Rate β€” the calories your body burns at rest including minimal daily activities like breathing and circulation.

πŸ”₯ RMR Calculator

Resting Metabolic Rate

RMR (Mifflin-based)1,779 kcal/day
RMR (Harris-Benedict)1,839 kcal/day
BMR (Mifflin)1,618 kcal/day
BMR (Harris-Benedict)1,672 kcal/day

πŸ’‘ RMR vs BMR

RMR (Resting Metabolic Rate) and BMR (Basal Metabolic Rate) are closely related but measured differently. BMR is measured under strict conditions (12+ hour fast, complete rest, dark room). RMR is measured under less strict resting conditions and is typically 10-20% higher.

For practical purposes, RMR is more useful because BMR conditions are unrealistic for daily life. RMR accounts for the calories you burn just existing β€” breathing, circulation, organ function, basic cellular activity.

30-year-old male, 70 kg, 170 cm: BMR β‰ˆ 1,596, RMR β‰ˆ 1,756 kcal/day (10% higher).

RMR Calculator FAQ

πŸ”— Related Calculators

BMR CalculatorCalculate your Basal Metabolic Rate (BMR) β€” the calories your body burns at rest. Uses Mifflin-St Jeor and Harris-Benedict equations.TDEE CalculatorCalculate your Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor equation. See BMR and calories burned at each activity level.Mifflin St. Jeor CalculatorCalculate your BMR using the Mifflin-St Jeor equation β€” the most accurate BMR formula for most adults. See daily calorie needs at all activity levels.Calorie CalculatorCalculate how many calories you need per day to maintain, lose, or gain weight based on age, gender, height, weight, and activity level.