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How To Calculate Calories Burnt

Calories Burned Formula:

\[ \text{Calories} = \text{BMR} \times \text{Activity Factor} \times \frac{\text{Time}}{24} \]

kcal/day
unitless
hours

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1. What is Calories Burned Calculation?

The calories burned calculation estimates the number of calories expended during physical activity based on Basal Metabolic Rate (BMR), activity intensity, and duration. It helps individuals understand their energy expenditure for weight management and fitness planning.

2. How Does the Calculator Work?

The calculator uses the calories burned formula:

\[ \text{Calories} = \text{BMR} \times \text{Activity Factor} \times \frac{\text{Time}}{24} \]

Where:

Explanation: The formula calculates daily burn adjusted for exercise by proportioning the activity time relative to a full day.

3. Importance of Calories Burned Calculation

Details: Accurate calorie expenditure estimation is crucial for weight management, exercise planning, and creating effective fitness programs. It helps balance energy intake and output for optimal health outcomes.

4. Using the Calculator

Tips: Enter BMR in kcal/day, activity factor (typically 1.2-2.5 depending on intensity), and time in hours. All values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is BMR and how is it calculated?
A: Basal Metabolic Rate is the number of calories your body needs at complete rest. It can be estimated using formulas like Harris-Benedict or Mifflin-St Jeor equations.

Q2: What are typical activity factor values?
A: Sedentary: 1.2, Light exercise: 1.375, Moderate: 1.55, Heavy: 1.725, Athlete: 1.9-2.5 depending on intensity.

Q3: How accurate is this calculation?
A: It provides a reasonable estimate but individual variations in metabolism, fitness level, and exercise efficiency can affect actual calorie burn.

Q4: Should I use this for weight loss planning?
A: Yes, it helps create a calorie deficit plan, but combine with professional advice and consider other factors like nutrition and overall health.

Q5: Can this calculation be used for all types of exercise?
A: It works best for sustained aerobic activities. For high-intensity interval training or strength training, additional factors may need consideration.

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