Macro calculator

Mifflin-St Jeor estimates resting energy from body size, an activity multiplier turns it into maintenance, and the goal cuts or adds a slice. Protein and fat are set first by your assumptions, carbohydrate fills whatever is left, all computed unrounded and only rounded for display. This is arithmetic, not medical advice: pregnancy, eating disorders, diabetes, and kidney disease all move these numbers in ways no calculator sees, so take the plan to a doctor or dietitian before acting on it.