Why these calculators exist
Most nutrition calculators bury a simple answer under ads, email walls and upsells. These don't. Each one uses the same evidence-based formulas a coach would — Mifflin-St Jeor for BMR, standard activity multipliers for TDEE, and research-backed protein ranges — and gives you the number instantly, in metric or imperial.
They're also a logical first step before tracking. Run the calorie calculator to find your target, split it with the macro calculator, then use Macroo to actually hit those numbers day to day — logging meals in plain English instead of scanning barcodes. Unlike the $80-a-year subscription apps, Macroo is $9.99 once. See how it compares on the comparison hub.