Calculate Your Metabolic Rate
What is Basal Metabolic Rate (BMR)?
Your Basal Metabolic Rate represents the minimum calories required for vital functions at rest. Our calculator uses the Mifflin-St Jeor Equation - the gold standard for BMR calculation - considering:
- ✅ Biological sex differences
- ✅ Age-related metabolic changes
- ✅ Body composition factors
How To Use This Calculator
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Enter Biometric Data
- Select biological sex
- Input age (1-120 years)
- Provide weight and height
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Select Physical Activity
5-tier system from sedentary to athlete level (Multipliers 1.2-1.9)
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Get Your Metabolic Report
- BMR: Resting calorie needs
- TDEE: Active calorie requirements
Interpreting Your Results
- Weight Loss: Consume 10-15% below TDEE
- Muscle Gain: Consume 10-15% above TDEE
- Maintenance: Match TDEE intake
Scientific Validity & Security
- Data Privacy: Zero data storage
- Medical Accuracy: ADA-approved formula
- Disclaimer: Consult dietitian for special conditions
Note: Recommended for adults 18-80. Combine with body fat measurements for optimal results. Not suitable for pregnant women or competitive athletes.
Practical Applications
Common Use Cases: • Fitness enthusiast meal planning • Weight management programs • Nutritionist client assessments • Health coach consultations