TDEE CALCULATOR · AD-FREE

A starting point,
not a prescription.

This calculator uses the Mifflin–St Jeor equation for resting energy, multiplied by a rough activity factor. Enable JavaScript to enter your measurements and calculate an estimate locally on this device.

Understand the estimate.

Activity factors are estimates, not measurements. Individual energy needs vary with body composition, health circumstances and medication. This is not a weight-loss target or individualized advice.

The tool is for adults and is not intended for pregnancy, breastfeeding, eating-disorder care or medical nutrition planning. Measurements are neither transmitted nor saved.