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 activity level. It's used to determine daily calorie needs for weight maintenance, loss, or gain.

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:

• Men: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5
• Women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161

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 helps in creating personalized nutrition plans for weight management, athletic performance, and overall health.

4. Using the Calculator

Tips: Enter weight in kg, height in cm, age in years, select gender and activity level. For accurate results, measure weight and height precisely.

5. Frequently Asked Questions (FAQ)

Q1: Why use Mifflin-St Jeor equation?
A: It's currently considered the most accurate BMR equation for healthy individuals.

Q2: How often should I recalculate my TDEE?
A: Recalculate after significant weight changes (±5kg) or changes in activity level.

Q3: Is TDEE different for athletes?
A: Yes, athletes may have higher TDEE due to increased muscle mass and training volume.

Q4: Can TDEE change with age?
A: Yes, BMR typically decreases by about 1-2% per decade after age 20.

Q5: How accurate is this calculator?
A: It provides a good estimate but individual variations exist. For precise needs, consider professional metabolic testing.