ToolWren › Calories Burned

Calories Burned Calculator

Estimate how many calories you burn during an activity, based on its intensity (MET), your weight and how long you exercise.

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How to use the Calories Burned

Fill in each input field with your own numbers.
Results calculate automatically and update as you change any value.
Read the result cards below the inputs for the full breakdown.
Adjust any field to explore different scenarios instantly.

Privacy: this tool runs entirely in your browser. Your input is never sent to, received by, or stored on any server — there are no uploads and no tracking of what you enter.

About Calories Burned

What is a MET?

A MET (Metabolic Equivalent of Task) measures an activity's energy cost relative to resting. Walking is about 3.5 METs, running about 10. Calories burned ≈ MET × 3.5 × weight(kg) ÷ 200 × minutes.

How to use it

Pick your activity, enter your weight (metric or imperial) and the duration, and the tool estimates total calories burned and the per-hour rate.

An estimate

Actual calorie burn depends on fitness, intensity, terrain and individual metabolism, so treat the figure as a useful approximation.

Frequently asked questions

How are calories burned calculated?

Using the standard MET formula: MET × 3.5 × weight in kg ÷ 200 × minutes.

Why does weight affect calories burned?

Heavier bodies use more energy to perform the same activity.

Is the estimate exact?

No — it's a solid approximation; trackers with heart-rate data can be more personalized.