1. What is TDEE?

Total Daily Energy Expenditure (TDEE) represents the total number of calories you burn in a day, including basal metabolic rate (BMR) and calories burned through physical activity. It's a crucial measurement for weight management and nutrition planning.

2. How Does the Calculator Work?

The calculator uses the TDEE equation:

Where:

• \( BMR \) — Basal Metabolic Rate (calories burned at rest)
• \( \text{activity multiplier} \) — Factor based on your activity level

Activity Multipliers:

• Sedentary (little/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. Accuracy of TDEE Calculation

Details: TDEE calculators provide estimates with an accuracy range of approximately +/- 10-20%. The accuracy improves when combined with consistent tracking of food intake and weight changes over time. Individual variations in metabolism, body composition, and non-exercise activity thermogenesis (NEAT) can affect the actual energy expenditure.

4. Using the Calculator

Tips: Enter your BMR (calculated from a separate BMR calculator) and select your activity level based on your typical weekly exercise routine. For best results, track your actual calorie intake and weight changes to adjust the estimate based on your personal experience.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is TDEE calculation?
A: TDEE calculators are generally accurate within 10-20% when combined with consistent tracking of food intake and weight changes.

Q2: Why is my calculated TDEE different from other calculators?
A: Different calculators may use slightly different equations or activity multipliers, leading to variations in estimates.

Q3: How can I improve TDEE accuracy?
A: Track your food intake and weight consistently for 2-4 weeks, then adjust your TDEE estimate based on actual weight changes.

Q4: Does TDEE change over time?
A: Yes, TDEE changes with weight loss/gain, changes in activity level, and metabolic adaptations.

Q5: Should I use TDEE for weight loss?
A: Yes, TDEE provides a good starting point for creating a calorie deficit, but individual adjustments may be needed based on results.