1. What is TDEE Calculation Using BMR?

Total Daily Energy Expenditure (TDEE) represents the total number of calories you burn in a day, calculated by multiplying your Basal Metabolic Rate (BMR) by an activity factor that accounts for your daily physical activity level.

2. How Does the Calculator Work?

The calculator uses the TDEE formula:

Where:

• \( BMR \) — Basal Metabolic Rate (kcal/day)
• \( activity\_factor \) — Multiplier based on activity level (dimensionless)

Activity Factor Values:

• 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 weight management, whether your goal is weight loss, weight maintenance, or muscle gain. It helps determine appropriate calorie intake for your specific goals and activity level.

4. Using the Calculator

Tips: Enter your BMR in kcal/day and select your appropriate activity level from the dropdown menu. Ensure your BMR value is accurate for the most precise TDEE calculation.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between BMR and TDEE?
A: BMR represents calories burned at complete rest, while TDEE includes all daily activities and represents total daily calorie expenditure.

Q2: How often should I recalculate my TDEE?
A: Recalculate whenever your weight changes significantly, your activity level changes, or every 4-6 weeks for ongoing weight management.

Q3: Are the activity factors accurate for everyone?
A: While these are standard multipliers, individual variations exist. The factors provide a good estimate but may need adjustment based on personal experience.

Q4: Can I use this for weight loss planning?
A: Yes, subtract 250-500 calories from your TDEE for a safe weight loss of 0.5-1 pound per week.

Q5: What if my activity level varies day to day?
A: Choose the factor that represents your average weekly activity level, or calculate different days separately and average them.