1. What is Total Daily Energy Expenditure (TDEE)?

Total Daily Energy Expenditure (TDEE) represents the total number of calories your body burns in a day, including basal metabolic rate (BMR) and calories burned through physical activity. It's a crucial metric for weight management and nutritional planning.

2. How Does the Calculator Work?

The calculator uses the TDEE formula:

Where:

• \( BMR \) — Basal Metabolic Rate (calories burned at rest)
• \( Activity Factor \) — Multiplier based on activity level:
  • 1.2 — Sedentary (little or no exercise)
  • 1.375 — Lightly active (light exercise 1-3 days/week)
  • 1.55 — Moderately active (moderate exercise 3-5 days/week)
  • 1.725 — Very active (hard exercise 6-7 days/week)
  • 1.9 — Extra active (very hard exercise, physical job)

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 weight management goals. To lose weight, consume fewer calories than your TDEE; to gain weight, consume more; to maintain weight, match your TDEE.

4. Using the Calculator

Tips: Enter your BMR value in kcal/day and select your appropriate activity level from the dropdown menu. Ensure your BMR is calculated accurately for best results.

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 equations, which consider age, gender, height, and weight.

Q2: How accurate is TDEE calculation?
A: While formulas provide good estimates, individual variations exist. Consider it a starting point and adjust based on actual results.

Q3: Should I recalculate my TDEE regularly?
A: Yes, recalculate when your weight changes significantly, activity level changes, or every few months to account for metabolic adaptations.

Q4: What if I'm between activity levels?
A: Choose the level that best represents your average weekly activity. You can also use intermediate values if needed.

Q5: Can TDEE change throughout life?
A: Yes, TDEE typically decreases with age due to changes in metabolism, muscle mass, and activity levels.