Free Online BMR Calculator

Use our BMR Calculator to determine your Basal Metabolic Rate — the number of calories your body burns at rest. This tool supports both US units and Metric units, making it easy to calculate your daily energy needs.

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What is BMR (Basal Metabolic Rate)?

BMR is the number of calories your body burns at rest to maintain essential functions such as breathing, circulation, and cell repair. Knowing your BMR helps you plan effective diet and fitness strategies.

BMR vs TDEE

While BMR measures calories burned at rest, TDEE (Total Daily Energy Expenditure) includes physical activity. For weight management, you need to compare your calorie intake with TDEE.

How to Use This Calculator

  • Enter your age, weight, height, and gender.
  • Choose metric or US units.
  • Get your daily BMR result instantly.

Disclaimer

This calculator provides estimates based on standard formulas. For medical advice, please consult a qualified healthcare professional.

Frequently Asked Questions about BMR

1. How do I calculate my BMR?

Our calculator uses the Mifflin-St Jeor equation, which is one of the most accurate methods.

2. Is BMR the same as calories burned in a day?

No. BMR is the calories you burn at rest. Daily calories burned also include activity levels (TDEE).

3. Can BMR help in weight loss?

Yes. Knowing your BMR helps you plan calorie intake and manage weight more effectively.