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BMR Calculator

Calculate your Basal Metabolic Rate (BMR) - the number of calories your body needs at rest to maintain basic physiological functions.

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BMR Calculator

Calculate your Basal Metabolic Rate using either the Mifflin-St Jeor or Harris-Benedict formula.

Years (15-80)
BMR Results
0
Your BMR
0
Calories/Day
Calculation Details
Formula Used -
Gender -
Age - years
Weight -
Height -

Daily Calorie Needs

Based on your BMR, calculate your total daily calorie needs based on activity level.

Total Daily Energy Expenditure
0
Maintenance
0
Mild Weight Loss
0
Weight Loss
0
Extreme Weight Loss
Calorie Targets
Maintenance - calories/day
Mild Weight Loss (0.25 kg/week) - calories/day
Weight Loss (0.5 kg/week) - calories/day
Extreme Weight Loss (1 kg/week) - calories/day

About BMR

Understand what Basal Metabolic Rate means and how it affects your daily calorie needs.

What is BMR?

Basal Metabolic Rate is the number of calories your body needs to perform basic life-sustaining functions like breathing, circulation, and cell production while at complete rest.

Formulas Used

Mifflin-St Jeor Equation:
Men: (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5
Women: (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161
Harris-Benedict Equation:
Men: 88.362 + (13.397 × weight in kg) + (4.799 × height in cm) - (5.677 × age in years)
Women: 447.593 + (9.247 × weight in kg) + (3.098 × height in cm) - (4.330 × age in years)