1. What is TDEE?

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 a crucial metric for weight management and nutritional planning.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation for BMR and multiplies by an activity factor:

Where BMR is calculated as:

• For men: \( BMR = (10 \times weight) + (6.25 \times height) - (5 \times age) + 5 \)
• For women: \( BMR = (10 \times weight) + (6.25 \times height) - (5 \times age) - 161 \)

Activity Multipliers:

• Sedentary (little or no exercise): 1.2
• Light (exercise 1-3 days/week): 1.375
• Moderate (exercise 3-5 days/week): 1.55
• Active (exercise 6-7 days/week): 1.725
• Very Active (hard exercise daily): 1.9

3. Importance of TDEE Calculation

Details: Knowing your TDEE helps you determine appropriate calorie intake for weight loss, maintenance, or muscle gain. It provides a scientific basis for creating effective diet plans.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, select your gender and activity level. Be honest about your activity level for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the Mifflin-St Jeor equation?
A: It's considered one of the most accurate BMR equations for the general population, with about 90% accuracy.

Q2: Should I use my current weight or goal weight?
A: Always use your current weight for accurate TDEE calculation. Adjust as your weight changes.

Q3: How often should I recalculate my TDEE?
A: Recalculate every 4-6 weeks or whenever your weight changes significantly or your activity level changes.

Q4: What if my activity level varies day to day?
A: Choose the multiplier that best represents your average weekly activity level.

Q5: Can TDEE change over time?
A: Yes, TDEE decreases with age and weight loss, and increases with muscle gain and increased activity.