Calorie Calculator
Estimate maintenance calories from body measurements, then add real activities such as walking steps, swimming, cycling, soccer, tennis and running to estimate exercise calorie burn and approximate energy balance.
Formula / method
Mifflin-St Jeor BMR × activity multiplier.
General informational estimate only; not medical advice.
How to use
Enter measurements using the units shown and use recent, representative values.
Daily calorie estimate
Estimate maintenance calories from BMR and activity level, then compare common calorie targets for mild loss, moderate loss, maintenance and mild gain.
What this calculator answers
The Calorie Calculator uses Weight (kg), Height (cm), Age, Sex: 1 male, 0 female, Activity multiplier to calculate the requested result. The core method is Mifflin-St Jeor BMR × activity multiplier.. This makes the assumptions visible so you can check whether the inputs match your situation.
How to get a useful result
Enter measurements using the units shown and use recent, representative values.
How to interpret it
Health and fitness formulas are screening or planning estimates, not a diagnosis or individualized medical recommendation.
Before relying on the number
Recheck unusual inputs, confirm units and compare the result with any official quote, statement, specification or rule that applies to the real decision. Small changes in rates, time periods or measurements can materially change some results.