1. What is TDEE?

Total Daily Energy Expenditure (TDEE) is an estimate of how many calories you burn per day when exercise is taken into account. It's calculated by first determining your Basal Metabolic Rate (BMR), then multiplying by an activity factor.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years
• \( s \) — +5 for males, -161 for females
• \( activity\ factor \) — Multiplier based on activity level

Explanation: The equation first calculates your BMR (calories burned at complete rest), then multiplies by an activity factor to estimate total daily calorie needs.

3. Importance of TDEE Calculation

Details: Knowing your TDEE is essential for weight management - to lose weight you need to consume fewer calories than your TDEE, to gain weight you need to consume more.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why use Mifflin-St Jeor equation?
A: It's currently considered the most accurate BMR equation for healthy individuals.

Q2: What if I'm overweight or obese?
A: The equation still works reasonably well, though it may slightly overestimate BMR in obese individuals.

Q3: How often should I recalculate my TDEE?
A: Whenever your weight changes significantly (±5kg) or your activity level changes substantially.

Q4: Why are there different activity factors?
A: Different activity levels burn different amounts of calories. The factors account for this variation.

Q5: Is this accurate for athletes?
A: It provides a reasonable estimate, but athletes with very high activity levels may need more precise measurements.