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 calories burned through physical activity.

2. How Does the Calculator Work?

The calculator uses the TDEE equation:

Where:

• \( BMR \) — Basal Metabolic Rate (kcal/day)
• \( activity\_factor \) — Multiplier based on activity level

Activity Factors:

• 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

3. Importance of TDEE Calculation

Details: Knowing your TDEE is essential for weight management, whether your goal is to lose, maintain, or gain weight. It helps determine appropriate daily calorie intake.

4. Using the Calculator

Tips: Enter your BMR in kcal/day and select your appropriate activity level factor. All values must be valid (BMR > 0).

5. Frequently Asked Questions (FAQ)

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

Q2: How accurate is the TDEE calculation?
A: While the formula provides a good estimate, individual variations in metabolism and activity levels may affect accuracy.

Q3: Should I use TDEE for weight loss?
A: Yes, consuming 500-1000 calories less than your TDEE per day typically results in 1-2 pounds of weight loss per week.

Q4: How often should I recalculate my TDEE?
A: Recalculate when your weight changes significantly, activity level changes, or every 4-6 weeks during weight loss.

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