MET Calorie Calculator
The MET Calorie Calculator computes met calorie from the relation calories = MET x weight in kg x duration in hours. It takes 3 inputs (met value of the activity in MET, body weight in kg, duration of activity in hours) and returns the met calorie. Because this is a pure mathematical or physical formula rather than a jurisdiction-specific rule, the result never changes over time: the same inputs always produce the same answer, so you can rely on it whether you are checking homework, sizing a design, or sanity-checking another tool. Enter your values in the fields below and the result updates instantly; you can also share a permalink that pre-fills the exact calculation, which is useful for teaching, reports, or collaboration. For example, with met value of the activity = 8 MET, body weight = 80 kg, duration of activity = 0.5 hours, the met calorie works out to 320, and the worked example further down the page shows every step so you can follow the arithmetic and reproduce it by hand. The method is the standard form documented by CDC Physical Activity, and the figure above each result carries the date it was last verified. This tool is general information and is not a substitute for professional engineering, medical, financial, or scientific advice; always check critical results against the primary source and your own judgement.
With MET value of the activity = 8 MET, Body weight = 80 kg, Duration of activity = 0.5 hours, the result is 320.
Applies to: any numeric inputs. Method source: CDC Physical Activity, checked 2026-06-23.
The formula
calories = MET x weight in kg x duration in hours
Worked example
With MET value of the activity = 8 MET, Body weight = 80 kg, Duration of activity = 0.5 hours:
- Multiply MET by body weight in kg: 8 x 80
- Multiply by duration in hours: x 0.5
- Calories burned = 320
- MET Calorie = 320
This worked example is one of the automated golden-value tests this calculator must pass before it can publish.
What this assumes
- Inputs are real numbers in the units shown.
- The result is the exact value of calories = MET x weight in kg x duration in hours; general information, not professional advice.
Frequently asked questions
What formula does this use?
calories = MET x weight in kg x duration in hours, the standard form documented by CDC Physical Activity.
Does the result ever change over time?
No. This is a pure formula with no external rate, so the same inputs always give the same result.
Official sources and verification
- Method: CDC Physical Activity, checked 2026-06-23.
Reviewed by the CalculatorHub team, edited by James Graham, 2026-06-23. See our methodology. General information, not professional advice.