Free fitness calculators, built on established formulas.
CalorieCalcTools runs free calculators for calories, macros, running pace, sleep cycles and body fat. The formulas are established ones: Mifflin-St Jeor for energy, the U.S. Navy circumference method for body fat. No subscriptions, no accounts, no data stored.
The site is independently operated. All calculations happen in your browser. Nothing you type is transmitted anywhere.
Results are estimates, not medical advice. If you have health conditions or are considering a significant change to your diet or exercise routine, a doctor or registered dietitian is worth consulting first.