TDEE Equation:
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Total Daily Energy Expenditure (TDEE) represents the total number of calories your body burns in a day, including basal metabolic rate (BMR) and calories burned through physical activity. It's essential for weight management and fitness planning.
The calculator uses the Muscle for Life (Mifflin-based) equation:
Where:
Explanation: The equation first calculates Basal Metabolic Rate (BMR) using the Mifflin-St Jeor formula, then multiplies by an activity factor to estimate total daily energy expenditure.
Details: Knowing your TDEE is crucial for effective weight management. To lose weight, consume fewer calories than your TDEE; to gain weight, consume more. Accurate TDEE estimation helps create personalized nutrition plans.
Tips: Enter your weight in kg, height in cm, age in years, and select your activity level based on your weekly exercise routine. All values must be valid positive numbers.
Q1: What's the difference between BMR and TDEE?
A: BMR (Basal Metabolic Rate) is the calories your body needs 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 most populations. TDEE accuracy depends on honest activity level assessment.
Q3: Should I use metric or imperial measurements?
A: This calculator uses metric units (kg and cm) as they provide more precise calculations for the formula.
Q4: How often should I recalculate my TDEE?
A: Recalculate every 4-6 weeks or after significant weight changes (±5kg) or activity level changes.
Q5: Can TDEE change over time?
A: Yes, TDEE decreases with age and weight loss, and increases with muscle gain and increased activity levels.