1. What is 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 the amount of energy needed to maintain your current weight.

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:
  • Sedentary (little or no exercise): 1.2
  • Lightly active (light exercise 1-3 days/week): 1.375
  • Moderately active (moderate exercise 3-5 days/week): 1.55
  • Very active (hard exercise 6-7 days/week): 1.725
  • Extra active (very hard exercise & physical job): 1.9

Explanation: The equation calculates your total daily calorie needs by multiplying your BMR by an activity factor that represents your daily physical activity level.

3. Importance of TDEE Calculation

Details: Knowing your TDEE is essential for weight management. To maintain weight, consume calories equal to your TDEE. To lose weight, create a calorie deficit below your TDEE. To gain weight, consume calories above your TDEE.

4. Using the Calculator

Tips: Enter your BMR in kcal/day and select your activity level from the dropdown menu. If you don't know your BMR, you may need to calculate it first using a BMR calculator.

5. Frequently Asked Questions (FAQ)

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

Q2: How accurate is this calculation?
A: It provides a good estimate, but individual variations in metabolism and activity patterns can affect accuracy. Use it as a starting point and adjust based on results.

Q3: Should I use my current weight or goal weight?
A: Use your current weight for maintenance calculations. For weight loss/gain goals, you'll need to adjust your calorie intake accordingly.

Q4: How often should I recalculate my TDEE?
A: Recalculate when your weight changes significantly (5+ lbs), when your activity level changes substantially, or every 3-6 months.

Q5: Can TDEE change over time?
A: Yes, TDEE can change with weight loss/gain, aging, changes in muscle mass, and alterations in activity levels.