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 and multiplies by activity factor:

Where BMR is calculated as:

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

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 with weight management - consuming fewer calories than your TDEE leads to weight loss, while consuming more leads to weight gain. It's particularly useful for Filipinos adjusting their diet and exercise routines.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, select gender and activity level. For accurate results, use your most recent measurements.

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 whenever your weight changes significantly (±5kg) or your activity level changes substantially.

Q3: Is this calculator suitable for Filipinos?
A: Yes, the equations are generally applicable to Filipino adults, though individual variations exist.

Q4: What if I'm pregnant or breastfeeding?
A: These equations don't account for the increased energy needs during pregnancy/breastfeeding.

Q5: How accurate is the activity factor?
A: It's an estimate. People with very active jobs may need to adjust upwards, while those who overestimate their exercise may need to adjust downwards.