1. What is TDEE?

TDEE (Total Daily Energy Expenditure) represents the total number of calories your body burns in a day, including basal metabolic rate and physical activity. It's a crucial metric 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)
• \( \text{activity factor} \) — Multiplier based on activity level (1.2-1.9)

Explanation: The equation accounts for your base metabolic rate multiplied by your daily activity level to estimate total calorie expenditure.

3. Importance of TDEE Calculation

Details: Knowing your TDEE is essential for creating effective diet plans, whether for weight loss, maintenance, or muscle gain. It provides a scientific basis for calorie intake recommendations.

4. Using the Calculator

Tips: Enter your BMR value (calculated separately) and select your activity level based on your typical weekly exercise routine. All values must be valid (BMR > 0).

5. Frequently Asked Questions (FAQ)

Q1: How do I calculate my BMR?
A: BMR can be calculated using formulas like Mifflin-St Jeor or Harris-Benedict, which consider age, weight, height, and gender.

Q2: What activity factor should I choose?
A: Choose based on your typical weekly activity: sedentary (1.2), light (1.375), moderate (1.55), very active (1.725), or extra active (1.9).

Q3: How accurate is TDEE calculation?
A: While formulas provide good estimates, individual variations exist. Monitor your weight changes and adjust accordingly.

Q4: Should I adjust my TDEE over time?
A: Yes, as your weight, activity levels, or body composition change, you should recalculate your TDEE periodically.

Q5: Can TDEE help with weight loss?
A: Absolutely! Creating a calorie deficit (eating less than your TDEE) is the fundamental principle of weight loss.