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 the calories burned calculator 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).
Calories Burned Calculator 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.
Calories Burned Calculator: frequently asked questions
How does the calories burned calculator work?
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).
What can I inspect in the calories burned calculator result?
The activity energy by duration helps you check the result before using it. 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.
Does the calories burned calculator upload my input?
Processing happens in your browser. No tool input or output is uploaded to a server. Use Reset to clear the current workspace before starting a separate task.
Updated September 20, 2026