Calories Burned Calculator

Estimate the calories you burn during different physical activities with our free Calories Burned Calculator. Enter your activity, duration, and body weight to get a quick estimate of your energy expenditure.

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Calories Burned Calculator

This calculator estimates calories burned during physical activity using the MET (Metabolic Equivalent of Task) method or similar activity factors.

Basic Formula

Calories Burned ≈ MET × Body Weight (kg) × Duration (hours)

More precise versions also account for the fact that 1 MET ≈ 1 kcal per kg per hour.

Example

Person weighing 70 kg walks at a moderate pace (MET ≈ 3.5) for 40 minutes (0.667 hours):
Calories ≈ 3.5 × 70 × 0.667 ≈ 163 kcal

Notes

  • MET values are averages and vary by intensity and individual fitness.
  • Estimates are useful for comparison but not exact laboratory measurements.

Frequently Asked Questions FAQ

How are calories burned calculated?
Most calculators multiply an activity factor (MET) by body weight and duration.
What is a MET?
MET stands for Metabolic Equivalent of Task and represents intensity relative to rest.
Does body weight affect calories burned?
Yes. Heavier people generally burn more calories doing the same activity.
Are the results exact?
No. They are estimates based on average MET values.
Can I use this for different exercises?
Yes, provided the correct MET value for that activity and intensity is used.

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