BMR Calculator
Enter your details below to calculate your metabolic rate
Your Results
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Mifflin-St Jeor BMR
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Harris-Benedict BMR
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Katch-McArdle BMR
Total Daily Energy Expenditure (TDEE)
BMR Formula Details
About BMR and TDEE
What is BMR?
Basal Metabolic Rate (BMR) is the number of calories your body burns at rest to maintain basic life functions like breathing, circulation, cell production, and nutrient processing.
BMR Formulas Used
- Mifflin-St Jeor: Most accurate for most people, especially those with average body composition
- Harris-Benedict: Older formula, still widely used but may overestimate for some
- Katch-McArdle: Most accurate when body fat percentage is known
What is TDEE?
Total Daily Energy Expenditure (TDEE) is your BMR plus the calories burned through physical activity. This is the total number of calories you need to maintain your current weight.
How to Use These Results
- To lose weight: Consume 300-500 calories less than your TDEE
- To maintain weight: Consume calories equal to your TDEE
- To gain weight: Consume 300-500 calories more than your TDEE
⚠️ Medical Disclaimer: This calculator is provided for general informational and educational purposes only. It is not medical advice and is not a substitute for professional care. The estimates it produces are based on general formulas and may not reflect your individual needs. Before starting any diet, calorie restriction, weight-management program, or making long-term dietary or lifestyle changes, please consult a qualified physician, registered dietitian, or other trained medical professional — especially if you are pregnant or nursing, under 18, or have any underlying health condition. Always seek the advice of a healthcare provider with any questions regarding your health or nutrition.