1. What Is TDEE?

TDEE (Total Daily Energy Expenditure) represents the total number of calories your body burns in a day, including basal metabolic rate and physical activity. It indicates how many calories you need to maintain your current weight.

2. How Does The Calculator Work?

The calculator uses the Mifflin-St Jeor equation to calculate BMR, then multiplies by your activity level:

Where BMR is calculated as:

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

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 maintain weight, consume calories equal to your TDEE. To lose weight, create a calorie deficit, and to gain weight, create a calorie surplus.

4. Using The Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this TDEE calculator?
A: The Mifflin-St Jeor equation is considered one of the most accurate BMR formulas for the general population, though individual variations may exist.

Q2: Should I eat exactly my TDEE to maintain weight?
A: TDEE provides an estimate. Monitor your weight over time and adjust calories slightly based on your actual weight changes.

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

Q4: Does TDEE change with age?
A: Yes, metabolism generally slows with age, so your TDEE may decrease over time even if other factors remain constant.

Q5: Can I use this calculator if I'm pregnant or breastfeeding?
A: This calculator is not designed for pregnancy or breastfeeding, as energy needs are significantly different during these periods.