BMR Calculator - Basal Metabolic Rate Calculator

Calculate your Basal Metabolic Rate (BMR) - the number of calories your body burns at rest. Our calculator uses scientifically proven formulas to help you understand your daily caloric needs.

Height (cm)

Weight (kg)

Age (years)

Gender

Male Female

Activity Level

Calculation Method

Basal Metabolic Rate

0 calories/day

Total Daily Energy Expenditure

0 calories/day

Daily Calorie Needs

Maintain Current Weight

0 calories/day

Mild Weight Loss (0.25 kg/week)

0 calories/day

Moderate Weight Loss (0.5 kg/week)

0 calories/day

Aggressive Weight Loss (1 kg/week)

0 calories/day

Mild Weight Gain (0.25 kg/week)

0 calories/day

Moderate Weight Gain (0.5 kg/week)

0 calories/day

Aggressive Weight Gain (1 kg/week)

0 calories/day

Mifflin-St Jeor Equation (Recommended)

More accurate formula developed in 1990, especially for overweight individuals. Recommended by nutritionists.

What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic physiological functions like breathing, circulation, and cell production while at rest.

Factors Affecting BMR

Age, gender, weight, height, muscle mass, genetics, hormones, and environmental temperature all influence your metabolic rate.

TDEE vs BMR

Total Daily Energy Expenditure (TDEE) includes your BMR plus calories burned through physical activity and exercise.

Calculation Methods

Harris-Benedict: The original BMR formula developed in 1919, revised in 1984. Good for general population.

Mifflin-St Jeor: More accurate formula developed in 1990, especially for overweight individuals. Recommended by nutritionists.