1. What is TDEE?

Total Daily Energy Expenditure (TDEE) is the total number of calories you burn in a day, including basal metabolic rate (BMR) and activity. This calculator uses body fat percentage for more accurate results, especially for women.

2. How Does the Calculator Work?

The calculator uses these equations:

Where:

• \( weight \) — Body weight in kilograms
• \( body\_fat \) — Body fat percentage
• \( activity\_factor \) — Multiplier based on activity level

Explanation: The equation calculates BMR based on lean body mass (weight minus fat mass), then multiplies by activity factor to estimate total daily calorie needs.

3. Importance of Accurate TDEE Calculation

Details: Knowing your TDEE helps with weight management - consuming fewer calories than TDEE leads to weight loss, while consuming more leads to weight gain.

4. Using the Calculator

Tips: For best results, use an accurate body fat measurement (from DEXA, calipers, or bioelectrical impedance). Enter weight in kg and body fat percentage (0-100%).

5. Frequently Asked Questions (FAQ)

Q1: Why use body fat percentage instead of total weight?
A: Fat tissue burns fewer calories than lean tissue. Using body fat percentage gives a more accurate estimate of your metabolic rate.

Q2: How often should I recalculate my TDEE?
A: Recalculate whenever your weight changes by 2-3kg or your activity level changes significantly.

Q3: What's the most accurate way to measure body fat?
A: DEXA scans are most accurate, followed by hydrostatic weighing. Calipers and bioelectrical impedance scales can provide reasonable estimates.

Q4: Does this work for men too?
A: While the basic principle is similar, men typically use a different BMR equation (usually starting with 500 instead of 370).

Q5: How should I adjust calories for weight loss?
A: For sustainable weight loss, reduce TDEE by 15-20% (about 300-500 kcal/day for most people).