BMR Calculator
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using multiple proven formulas to understand your metabolism.
BMR (Basal Metabolic Rate) Calculator
⚙️ Calculation Settings
Most accurate for most people
📏 Physical Measurements
💡 Formula Information
Most accurate for general population. Widely used by nutritionists and dietitians.
Understanding BMR and Metabolism
What is BMR?
Basal Metabolic Rate (BMR) is the minimum number of calories your body needs to maintain basic physiological functions like breathing, circulation, and cell production while at complete rest.
BMR vs RMR
Resting Metabolic Rate (RMR) is similar to BMR but measured under less restrictive conditions. RMR is typically 10-20% higher than BMR and more practical for daily calculations.
Available Formulas
- • Mifflin-St Jeor: Most accurate for general population
- • Harris-Benedict: Traditional formula, slightly higher results
- • Katch-McArdle: Uses lean body mass (requires body fat %)
- • Cunningham: Best for lean, athletic individuals
💡 Factors Affecting BMR
- • Age (decreases with age)
- • Gender (males typically higher)
- • Body size and composition
- • Muscle mass (increases BMR)
- • Hormones and health conditions
🎯 Using Your BMR
- • Weight loss: Eat below TDEE
- • Weight gain: Eat above TDEE
- • Maintenance: Match your TDEE
- • Plan meal portions and timing
- • Adjust based on goals and progress