Method
Daily energy needs are estimated from the Mifflin–St Jeor equation and an activity multiplier.
Health / browser tool
Calorie Calculator
A Mifflin–St Jeor estimate with an adjustable activity multiplier.
Your inputs stay on your device
Estimate daily calories
live resultyears
cm
kg
Estimated daily calories
Estimated maintenance calories
Estimated BMR
Calories at rest, before activity
Uses the Mifflin–St Jeor formula and an activity multiplier. This is an estimate, not medical advice.
Useful context
How it works
Use the calculator first, then scan the details below when you want more context about the inputs, result, or assumptions.
How to use it
Enter the requested body measurements, age, sex setting, and activity level, then review the estimate.
Understand the result
The result is an estimated daily maintenance need, not a personalized prescription.
Example
The same body profile produces different estimates when sedentary and highly active levels are selected.
Notes
This is a general estimate and not medical advice. Real needs vary with health, goals, and measurement accuracy.
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