About Macro Calculator
Free online macro calculator. Calculate daily protein, carbs, and fat targets. No signup required — runs in your browser.
Why choose Online Tool Hub?
- Free forever — supported by non-intrusive ads
- USDA-backed food data where applicable
- Works on desktop and mobile
- Part of 24 free nutrition tools on Online Tool Hub
Frequently asked questions
- How do I use Macro Calculator?
- Calculate daily protein, carbs, and fat targets. Enter your details above for instant results.
- Is my health data sent to a server?
- Calculators run in your browser. Food searches query USDA or Open Food Facts APIs — we do not require an account.
- Do I need an account?
- No signup is required. All nutrition tools on Online Tool Hub are free to use.