1. What is TDEE?

TDEE (Total Daily Energy Expenditure) represents the total number of calories your body burns in a day, including basal metabolic rate and physical activity. It's a crucial metric for weight management and nutrition planning.

2. How Does the Calculator Work?

The calculator uses the TDEE formula:

Where:

• \( BMR \) — Basal Metabolic Rate (calories burned at rest)
• \( activity\_factor \) — Multiplier based on activity level

Activity Factors:

• Sedentary (little or 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. Importance of TDEE Calculation

Details: Knowing your TDEE is essential for creating effective nutrition plans for weight loss, maintenance, or muscle gain. It helps determine appropriate calorie intake for your goals.

4. Using the Calculator

Tips: Enter your BMR (calculated separately) and select your activity level based on your weekly exercise routine and lifestyle.

5. Frequently Asked Questions (FAQ)

Q1: How is BMR different from TDEE?
A: BMR represents calories burned at complete rest, while TDEE includes all daily activities and exercise.

Q2: How accurate are activity factors?
A: They provide estimates. Individual variations in metabolism and activity intensity can affect actual energy expenditure.

Q3: Should I use TDEE for weight loss?
A: Yes, consuming 500-1000 calories less than your TDEE typically results in 1-2 pounds of weight loss per week.

Q4: How often should I recalculate my TDEE?
A: Recalculate when your weight changes significantly, activity level changes, or every 4-6 weeks during weight loss.

Q5: Can TDEE change over time?
A: Yes, TDEE decreases with weight loss and age, and increases with muscle gain and increased activity.