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 essential for weight management and nutritional planning.

2. How Does the Calculator Work?

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

Where BMR is calculated as:

• For Men: BMR = 10 × weight(kg) + 6.25 × height(cm) - 5 × age(y) + 5
• For Women: BMR = 10 × weight(kg) + 6.25 × height(cm) - 5 × age(y) - 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
• Extremely active (very hard exercise, physical job): 1.9

3. Importance of TDEE Calculation

Details: Knowing your TDEE helps in creating effective weight management strategies. To lose weight, consume fewer calories than your TDEE; to gain weight, consume more calories than your TDEE.

4. Using the Calculator

Tips: Enter accurate body measurements in kilograms and centimeters. Select your appropriate activity level based on your typical weekly exercise routine for the most accurate results.

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 daily activities and exercise.

Q2: How accurate is this calculator?
A: It provides a good estimate for most people, but individual variations in metabolism may affect accuracy.

Q3: Should I use TDEE for weight loss?
A: Yes, consuming 300-500 calories below your TDEE typically results in safe weight loss of 0.5-1 kg per week.

Q4: How often should I recalculate my TDEE?
A: Recalculate every 4-6 weeks or after significant weight changes (±5 kg).

Q5: Can TDEE change with age?
A: Yes, TDEE generally decreases with age due to decreased muscle mass and metabolic rate.