Calorie Calculator (TDEE)
Estimate how many calories you burn per day (TDEE) with the Mifflin-St Jeor equation, plus targets to maintain, lose or gain weight steadily.
Runs on your device
Result
Results appear here as you type.
What it does
Your resting metabolic rate is multiplied by an activity factor to estimate daily energy use. Targets for weight change use moderate deficits or surpluses.
How to use it
- Enter age, sex, height and weight.
- Choose your activity level.
- Read maintenance calories and targets.
Example
The example fills in realistic values and runs the tool. Select Try an example above to see it.
When it helps
- Planning a sustainable diet.
- Fuelling training.
- Understanding food labels.
Questions
How accurate is it?
Mifflin-St Jeor is among the most accurate predictive equations for adults, typically within 10% for most people. Adjust based on real progress.
Is a very low target safe?
Targets are never shown below 1,200 kcal for women or 1,500 kcal for men; go lower only under medical supervision.
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