1. What is TDEE?

TDEE (Total Daily Energy Expenditure) represents the total number of calories you burn in a day, including your 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 (1.2 to 1.9)

Explanation: The equation accounts for your base metabolic needs 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), 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. All values must be valid (BMR > 0, activity factor between 1.2-1.9).

5. Frequently Asked Questions (FAQ)

Q1: How do I find my BMR?
A: Use a BMR calculator that considers your age, gender, weight, and height, or get it measured professionally.

Q2: What activity level should I choose?
A: Be honest about your daily activity. Sedentary = little/no exercise, Lightly Active = light exercise 1-3 days/week, etc.

Q3: How accurate is TDEE calculation?
A: It's an estimate. Individual variations in metabolism can affect actual energy expenditure.

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

Q5: Can TDEE help with muscle gain?
A: Yes, eating 250-500 kcal above your TDEE can support muscle growth when combined with strength training.