About RepMacro

RepMacro builds free calculators that turn your goal into clear daily numbers for calories, protein, carbs and fat.

What we believe

• Show the math. Every formula and threshold is published on our methodology page, with sources.
• No gate. The calculators work without an account, an email address or a paywall.
• Starting points, not prescriptions. A calculator gives you a sensible first target. Your weekly results tell you how to adjust it.
• Your inputs stay with you. Calculations run in your browser; see our privacy policy.

What you can use today

• Macro Calculator
• Protein Calculator
• Weight Loss Macro Calculator
• Muscle Gain Macro Calculator
• Body Recomp Macro Calculator
• TDEE Calculator
• Macro Calculator for Women
• Keto Macro Calculator

Important

RepMacro provides general nutrition information. It is not medical advice and does not replace a doctor or registered dietitian, particularly if you are pregnant, breastfeeding, under 18 or managing a medical condition.