About this calculator: It uses the Mifflin-St Jeor formula (1990), considered the most accurate for the general population. If you provide your body fat %, it uses Katch-McArdle which is even more precise. Macros are distributed according to ISSN (International Society of Sports Nutrition) recommendations.
Limitations: These formulas are estimates. Your actual metabolism varies based on genetics, exact body composition, stress, sleep, and other factors. For a personalized AI-powered analysis that connects all your data, try AEONUM.