1. What is TDEE?

TDEE (Total Daily Energy Expenditure) represents the number of calories you burn in a day, accounting for your basal metabolic rate (BMR) and activity level. It's your maintenance calorie level.

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

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 is essential for weight management - to maintain weight eat at TDEE, to lose weight eat below TDEE, to gain weight eat above TDEE.

4. Using the Calculator

Tips: Enter your age in years, select gender, enter weight in kg, height in cm, and select your activity level. All values must be valid.

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 TDEE.

Q2: Should I adjust my TDEE over time?
A: Yes, as your weight changes or activity levels change, you should recalculate.

Q3: What's the best way to measure my activity factor?
A: Be honest about your exercise habits. If unsure, start with a lower factor and adjust based on results.

Q4: How often should I recalculate my TDEE?
A: Every 5-10 lbs of weight change or if your activity level changes significantly.

Q5: Can TDEE vary day to day?
A: Yes, based on activity levels, but the calculator gives an average estimate.