1. What is TDEE?

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

2. How Does the Calculator Work?

The calculator uses the TDEE equation:

Where:

• \( BMR \) — Basal Metabolic Rate (calories burned at rest)
• \( activity\_factor \) — Multiplier based on activity level

Explanation: The equation accounts for your baseline calorie needs (BMR) multiplied by your activity level to estimate total daily calorie expenditure.

3. Importance of TDEE Calculation

Details: Knowing your TDEE helps with weight loss (eat below TDEE), weight maintenance (eat at TDEE), or weight gain (eat above TDEE). It's fundamental for personalized nutrition planning.

4. Using the Calculator

Tips: Enter your BMR in kcal/day and select your activity level. For accurate results, use a recent BMR measurement or calculation.

5. Frequently Asked Questions (FAQ)

Q1: How do I calculate my BMR?
A: Use the Mifflin-St Jeor or Harris-Benedict equation based on your weight, height, age, and gender.

Q2: What activity factor should I choose?
A: Be honest about your daily activity. Sedentary = little exercise, Lightly Active = light exercise 1-3 days/week, Moderately Active = moderate exercise 3-5 days/week, Very Active = hard exercise 6-7 days/week, Extremely Active = very hard exercise and physical job.

Q3: How accurate is this calculator?
A: It provides a good estimate, but individual variations exist. Monitor your weight changes and adjust as needed.

Q4: Should I recalculate my TDEE often?
A: Yes, especially if your weight, activity level, or body composition changes significantly.

Q5: Can I use TDEE for muscle gain?
A: Yes, eating 250-500 kcal above your TDEE supports muscle growth when combined with resistance training.