Health tool

Calorie Needs Estimator

Estimate adult resting energy expenditure and maintenance calories using activity factors.

RESULT

These are approximate values for adults, not individualized medical advice.

USING THIS TOOL

How Calorie Needs Estimator helps

Enter age, height, weight, the equation option and an activity estimate to see an approximate range.

Method and assumptions

Uses the Mifflin–St Jeor formula with common activity multipliers. It is an estimate, not a measured prescription.

Example

Changes in daily activity can shift maintenance needs substantially, even for people with the same height and weight.

Know the limits

Check your inputs and verify important financial, health, legal, educational or property decisions using the relevant professional or official source. Results depend on stated assumptions.