1. What is TDEE?

TDEE (Total Daily Energy Expenditure) represents the total number of calories you burn in a day, including basal metabolic rate (BMR) and physical activity. It's the number of calories you need to maintain your current weight.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor Equation for BMR and multiplies it by an activity factor:

Where BMR is calculated as:

• For men: \( BMR = 10 \times weight\ (kg) + 6.25 \times height\ (cm) - 5 \times age\ (years) + 5 \)
• For women: \( BMR = 10 \times weight\ (kg) + 6.25 \times height\ (cm) - 5 \times age\ (years) - 161 \)

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. To lose weight, consume fewer calories than your TDEE; to gain weight, consume more.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, select gender and activity level. Be honest about your activity level for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: It provides a good estimate but individual variations exist due to factors like muscle mass and genetics.

Q2: Should I eat exactly my TDEE to maintain weight?
A: It's a starting point. Monitor your weight and adjust as needed based on results.

Q3: How often should I recalculate my TDEE?
A: Recalculate after significant weight changes (±5kg) or changes in activity level.

Q4: Why use kg and cm instead of pounds and inches?
A: The Mifflin-St Jeor equation was developed using metric measurements for most accurate results.

Q5: Can I use this if I'm pregnant or breastfeeding?
A: No, these conditions significantly alter energy needs. Consult a healthcare provider.