1. What is TDEE?

Total Daily Energy Expenditure (TDEE) represents the total number of calories you burn in a day, including basal metabolic rate (BMR) and calories burned through physical activity. It's a crucial metric for weight management and nutrition planning.

2. How Does the Calculator Work?

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

Where BMR is calculated as:

• Male: \( BMR = (10 \times weight) + (6.25 \times height) - (5 \times age) + 5 \)
• Female: \( BMR = (10 \times weight) + (6.25 \times height) - (5 \times age) - 161 \)

Activity multipliers:

• Sedentary (little/no exercise): 1.2
• Light (light exercise 1-3 days/week): 1.375
• Moderate (moderate exercise 3-5 days/week): 1.55
• Very Active (hard exercise 6-7 days/week): 1.725
• Extra Active (very hard exercise, physical job): 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 nutrition plans.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why use Mifflin-St Jeor equation?
A: The Mifflin-St Jeor equation is considered one of the most accurate BMR formulas for most populations and is widely used in clinical settings.

Q2: How often should I recalculate my TDEE?
A: Recalculate every 4-6 weeks or whenever your weight changes significantly or your activity level changes.

Q3: Is this calculator suitable for athletes?
A: While it provides a good estimate, athletes with very high activity levels may need more personalized calculations.

Q4: What if my activity level varies daily?
A: Choose the activity level that best represents your average weekly activity, or calculate different days separately and average them.

Q5: How accurate is this calculation?
A: It provides a good estimate for most people, but individual variations in metabolism may affect accuracy. Use it as a starting point and adjust based on results.