Bmr Calculator
Calculate your Basal Metabolic Rate (BMR) based on age, gender, weight, and height using the Mifflin-St Jeor equation.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the BMR Calculator
- Enter your age in years (1–120).
- Select your gender (Male or Female).
- Enter your weight in kilograms (1–700 kg).
- Enter your height in centimeters (1–300 cm).
- Click "Calculate BMR".
What you get: Your Basal Metabolic Rate (BMR) in kcal/day, calculated using the Mifflin-St Jeor equation. This is the number of calories your body needs at rest.
Note: All inputs must be in metric units (kg and cm). Invalid entries will show an error.
Previous Results
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Frequently Asked Questions
BMR stands for Basal Metabolic Rate, the number of calories your body needs to perform basic life-sustaining functions at rest.
This calculator uses the Mifflin-St Jeor equation: For men: BMR = 10 × weight (kg) + 6.25 × height (cm) - 5 × age (yr) + 5; For women: BMR = 10 × weight (kg) + 6.25 × height (cm) - 5 × age (yr) - 161.
BMR helps determine your daily calorie needs. Knowing your BMR can assist in weight management and dietary planning.
