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 (BMR) and physical activity. It's essential 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

Activity Factor Levels:

• Sedentary (1.2): Little to no exercise
• Lightly Active (1.375): Light exercise 1-3 days/week
• Moderately Active (1.55): Moderate exercise 3-5 days/week
• Very Active (1.725): Hard exercise 6-7 days/week
• Extremely Active (1.9): Very hard exercise, physical job

3. Importance of TDEE Calculation

Details: Knowing your TDEE helps determine appropriate calorie intake for weight loss, maintenance, or muscle gain. It provides a scientific basis for dietary planning and fitness goals.

4. Using the Calculator

Tips: Enter your BMR in kcal/day and select your activity level based on your typical weekly exercise routine. For accurate results, use a measured BMR value rather than estimated.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between BMR and TDEE?
A: BMR is calories burned at complete rest, while TDEE includes all daily activities and exercise.

Q2: How do I calculate my BMR?
A: BMR can be measured through indirect calorimetry or estimated using equations like Mifflin-St Jeor or Harris-Benedict.

Q3: How accurate is the activity factor method?
A: It provides a good estimate for most people, but individual variations in metabolism and activity intensity can affect accuracy.

Q4: Should I adjust my TDEE over time?
A: Yes, TDEE changes with weight loss/gain, aging, and changes in activity levels. Recalculate periodically.

Q5: Can TDEE help with weight loss?
A: Yes, consuming 500 kcal less than your TDEE typically results in about 1 pound (0.45 kg) of weight loss per week.