Which equation do the health calculators use?
Both the calorie and TDEE pages use Mifflin-St Jeor for basal calories, then multiply by an activity factor you choose. The pages say so in the steps.
Estimate daily calories and maintenance from the measurements you type. These pages are planning tools, not medical advice.
Both the calorie and TDEE pages use Mifflin-St Jeor for basal calories, then multiply by an activity factor you choose. The pages say so in the steps.
No. The equation was built for adults, and the pages warn when age is under 18. Talk with a clinician before you change how you eat or train.