About MacroCalcs

Free, fast nutrition and fitness calculators with no sign-up and no tracking walls.

Most calculator sites bury the number under pop-ups or ask for your email. We think you should get your answer instantly, with a plain-English explanation of what it means and where it comes from.

Your inputs are only used to compute your result. We don't store them or ask for personal details. See our methodology for the formulas behind every calculator.

These results are estimates for healthy adults and are not medical advice. If you are pregnant, breastfeeding, under 18, or managing a medical condition, talk to your doctor or a registered dietitian.