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BMR Calculator

Find your daily calorie needs at rest (Basal Metabolic Rate)

Calculate your Basal Metabolic Rate (BMR) – the number of calories your body needs at rest. Perfect for diet and fitness planning.

How to use this tool
  • Select your Gender (Male/Female)
  • Enter your Age in years
  • Enter your Weight in kilograms (kg)
  • Enter your Height in centimeters (cm)
  • Click Calculate BMR to see your daily calorie needs at rest
Privacy & Security

All calculations are performed locally in your browser. No data is ever sent to any server.

BMR Formula (Mifflin-St Jeor)
  • Men: 88.362 + (13.397 × weight) + (4.799 × height) – (5.677 × age)
  • Women: 447.593 + (9.247 × weight) + (3.098 × height) – (4.330 × age)
  • Multiply BMR by activity factor (1.2–1.9) to get TDEE
What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions at rest.

How accurate is the BMR formula?

The Mifflin-St Jeor formula is considered very accurate for most people.

How do I use BMR for weight loss?

BMR + activity calories = total daily calorie need. To lose weight, consume 300-500 fewer calories per day.

Is this tool free?

Yes – completely free with no registration, limits, or watermarks.

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