About this calories burned calculator
Estimate calories burned during common activities using standard MET (metabolic equivalent of task) values. Choose an activity, enter your body weight and how long you did it for, and this tool multiplies the activity's MET value by your weight in kilograms and the duration in hours — the standard formula used across fitness and clinical references. MET values here are commonly cited figures adapted from the Compendium of Physical Activities (Ainsworth et al., 2011). Use this workspace to prepare a result you can review before putting it to use. All processing takes place on your device, without an account or an upload of your inputs. Check the examples to understand the expected output, read the limitations for the supported scope, and reset the form when you want to start a separate task.
How it works
Calories = MET × weight in kilograms × duration in hours. MET values come from a small fixed reference table per activity; source: Ainsworth et al., Compendium of Physical Activities (2011).
Try these examples
Brisk walking (4 mph); 70 kg; 30 minutes
175 kcal
Running (6 mph); 70 kg; 45 minutes
514.5 kcal
Limitations & privacy
MET values are fixed, commonly cited averages for each activity category, not personalized measurements; actual energy expenditure varies with fitness level, terrain, effort, and individual metabolism. Weight must be 30–300 kg and duration 1–600 minutes.
Inputs and results stay in this browser. Only tool identifiers are stored for your recently used tools. You can clear that history from the directory.
A few good questions
How is the result produced?
Calories = MET × weight in kilograms × duration in hours. MET values come from a small fixed reference table per activity; source: Ainsworth et al., Compendium of Physical Activities (2011).
Are my inputs sent to a server?
No. Inputs and results are processed locally and are not uploaded or included in telemetry. Copying or downloading is your choice.
What are the limits of this tool?
MET values are fixed, commonly cited averages for each activity category, not personalized measurements; actual energy expenditure varies with fitness level, terrain, effort, and individual metabolism. Weight must be 30–300 kg and duration 1–600 minutes.
Updated September 19, 2026