1. What is the Calories Burned Calculator?

The Calories Burned Calculator estimates your total daily energy expenditure (TDEE) by multiplying your Basal Metabolic Rate (BMR) with an activity factor. This helps determine how many calories you burn in a day based on your activity level.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( BMR \) — Basal Metabolic Rate (calories burned at rest)
• \( Activity Factor \) — Multiplier based on daily 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 Calculating Daily Calories

Details: Knowing your daily calorie expenditure is essential for weight management, creating effective diet plans, and optimizing athletic performance. It helps determine whether you should be in a calorie deficit for weight loss or surplus for muscle gain.

4. Using the Calculator

Tips: Enter your BMR in kcal/day and select your appropriate activity level. BMR can be calculated using various formulas (Harris-Benedict, Mifflin-St Jeor) based on age, gender, height, and weight.

5. Frequently Asked Questions (FAQ)

Q1: What is BMR and how is it different from TDEE?
A: BMR (Basal Metabolic Rate) is the calories your body burns at complete rest, while TDEE (Total Daily Energy Expenditure) includes all daily activities and exercise.

Q2: How accurate is this calculation?
A: It provides a good estimate but individual variations in metabolism, body composition, and activity patterns can affect accuracy by ±10-15%.

Q3: Should I use this for weight loss planning?
A: Yes, subtract 300-500 calories from your TDEE for gradual weight loss (0.5-1 kg per week), or add 300-500 calories for weight gain.

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

Q5: What if my activity level varies day by day?
A: Use an average activity factor or calculate separately for different types of days and average them over the week.