Calories Burned Calculator
A calories burned calculator helps you estimate energy burned during an activity by using body weight, activity intensity (MET), and duration.
Quick answer
The estimate is based on MET values and body weight.
What this tells you
- •The estimate is based on MET values and body weight.
- •Actual calorie burn can vary by physiology, efficiency, and workout conditions.
- •Use results for planning and tracking trends, not medical decisions.
How to Use
- 1Enter body weight in kilograms.
- 2Choose an activity intensity (MET) value or enter a custom MET estimate.
- 3Enter activity duration in minutes.
- 4Calculate to see estimated calories burned.
How It Works
Formula
Calories Burned = MET x Weight (kg) x Duration (hours)MET approximates activity intensity relative to rest and is multiplied by weight and duration to estimate calories burned.
Calculation note: values are processed in the order shown above, using the current input units.
Worked Examples
Moderate cardio estimate
Use this as a directional estimate. Wearables and lab testing may produce different values.
Common mistakes
- Treating MET tables as exact for every person
- Ignoring workout intensity variation inside a session
- Using calorie estimates as medical diagnosis data
Limitations
This calculator uses generalized MET assumptions and entered values. It does not account for body composition differences, training status, biomechanics, heart-rate response, medications, or clinical conditions.