1. What is TDEE?

Total Daily Energy Expenditure (TDEE) is an estimate of how many calories you burn per day when exercise is taken into account. It's calculated by first estimating your Basal Metabolic Rate (BMR), then multiplying that value by an activity factor.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor Equation for BMR:

Where \( s \) is +5 for males and -161 for females.

Then TDEE is calculated as:

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 you understand how many calories you need to maintain your current weight. 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 for most people, but individual variations in metabolism can affect actual calorie needs.

Q2: Should I eat exactly my TDEE to maintain weight?
A: TDEE is an estimate. Monitor your weight over time and adjust calories as needed.

Q3: How often should I recalculate my TDEE?
A: Recalculate when your weight changes significantly or your activity level changes.

Q4: Why is gender a factor in the calculation?
A: Men typically have more muscle mass and lower body fat percentage, which affects BMR.

Q5: Can I use this if I'm pregnant or breastfeeding?
A: These calculations don't account for the additional energy needs during pregnancy or lactation.