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BMR Calculator

Calculate your Basal Metabolic Rate (BMR) to know your daily calorie needs.

How to Use the BMR Calculator

Estimate your Basal Metabolic Rate (BMR) and total daily maintenance calories to help you plan your diet.

Steps

  1. Select your biological sex.
  2. Input your age, height, and weight using your preferred measurement system.
  3. (Optional) Change the underlying BMR formula using the "Settings" icon.
  4. Instantly view your BMR and your Total Daily Energy Expenditure (TDEE) based on various activity levels.

About This Tool

This tool computes the amount of energy your body burns at rest. It defaults to the highly accurate Mifflin-St Jeor equation but also offers the Harris-Benedict and Katch-McArdle formulas.

FAQs

1. What is the difference between BMR and TDEE?

BMR is the calories you burn simply by existing at rest. TDEE includes your BMR plus the calories you burn through physical activity.

2. Which formula should I use?

Mifflin-St Jeor is the most accurate for most people. If you know your exact body fat percentage, Katch-McArdle is the most precise.

3. Can I use this to lose weight?

Yes. By knowing your TDEE, you can create a caloric deficit (eating fewer calories than your TDEE) to lose weight effectively.