Macro Calculator

Macronutrients (macros) are the three main nutrients that provide energy: protein (4 kcal/g), carbohydrates (4 kcal/g), and fat (9 kcal/g). Calculating your optimal macro split helps optimise body composition — whether losing fat, maintaining weight, or building muscle

The calculator uses the standard published formula for macro. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.

The calculator applies the standard formula for this type of calculation. See the 'How It Works' steps above for the detailed formula breakdown.