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Daily Energy Expenditure Formula:
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Daily calories burned, also known as Total Daily Energy Expenditure (TDEE), represents the total number of calories your body burns in a day. It includes your Basal Metabolic Rate (BMR) plus calories burned through physical activity and digestion.
The calculator uses the Mifflin-St Jeor equation for BMR and activity multipliers:
Where:
Mifflin-St Jeor Equation:
For men: \( BMR = 10 \times \text{weight} + 6.25 \times \text{height} - 5 \times \text{age} + 5 \)
For women: \( BMR = 10 \times \text{weight} + 6.25 \times \text{height} - 5 \times \text{age} - 161 \)
Details: Knowing your daily calorie expenditure is crucial for weight management, whether your goal is weight loss, maintenance, or muscle gain. It helps create appropriate diet plans and exercise routines.
Tips: Enter your weight in kilograms, height in centimeters, age in years, select gender and activity level. Use accurate measurements for best results.
Q1: What is the difference between BMR and TDEE?
A: BMR is the calories your body burns at complete rest, while TDEE includes all daily activities and exercise.
Q2: How accurate is this calculator?
A: The Mifflin-St Jeor equation is considered one of the most accurate BMR formulas for healthy adults, with accuracy around ±10%.
Q3: Should I eat below or above my TDEE?
A: For weight loss, eat below TDEE; for weight gain, eat above TDEE; for maintenance, eat at TDEE.
Q4: How often should I recalculate my TDEE?
A: Recalculate every 4-6 weeks or when your weight changes by more than 5 kg or your activity level changes significantly.
Q5: Does muscle mass affect calorie burning?
A: Yes, muscle tissue burns more calories at rest than fat tissue, so individuals with more muscle mass typically have higher BMR.