1. What is Total Daily Energy Expenditure (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 a crucial metric for weight management and nutrition planning.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor Equation to estimate BMR:

Then calculates TDEE by multiplying BMR by your activity level:

Where activity factors are:

• 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 effective weight management. To lose weight, consume fewer calories than your TDEE; to gain weight, consume more; to maintain weight, match your TDEE.

4. Using the Calculator

Tips: Enter your weight in kilograms, height in centimeters, age in years, select your gender, and choose your activity level based on your typical weekly exercise routine.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this TDEE calculation?
A: The Mifflin-St Jeor Equation is considered one of the most accurate BMR formulas for healthy adults, but individual variations may exist.

Q2: Should I use my current weight or goal weight?
A: Always use your current weight for the most accurate TDEE calculation.

Q3: How often should I recalculate my TDEE?
A: Recalculate whenever your weight changes significantly (5+ kg) or your activity level changes substantially.

Q4: What if I'm pregnant or breastfeeding?
A: This calculator is not designed for pregnant or breastfeeding women, who have different caloric needs.

Q5: How should I adjust my calories for weight loss?
A: For sustainable weight loss, reduce your daily intake by 300-500 calories below your TDEE, aiming for 0.5-1kg loss per week.