1. What is TDEE?

Total Daily Energy Expenditure (TDEE) is an estimate of how many calories you burn per day when exercise is taken into account. It's calculated by multiplying your Basal Metabolic Rate (BMR) by your activity factor.

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 your activity level

Activity Factors:

• 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)

3. Importance of TDEE Calculation

Details: Knowing your TDEE is essential for weight management. To lose weight, consume fewer calories than your TDEE; to gain weight, consume more.

4. Using the Calculator

Tips: Enter your BMR in kcal/day and select your activity level. For accurate results, be honest about your activity level.

5. Frequently Asked Questions (FAQ)

Q1: How is BMR different from TDEE?
A: BMR is calories burned at complete rest, while TDEE includes all daily activities and exercise.

Q2: What if I don't know my BMR?
A: Use a BMR calculator first, which typically requires age, gender, weight, and height.

Q3: How accurate is the activity factor?
A: It's an estimate. People with very active jobs may need to adjust upwards, while those who sit all day may need to adjust downwards.

Q4: Should I recalculate my TDEE often?
A: Yes, especially if your weight, activity level, or body composition changes significantly.

Q5: Can I use TDEE for weight loss?
A: Yes, consuming 300-500 calories less than your TDEE daily typically leads to steady weight loss.