Macro Calculator

For general health: 0.36g per pound of body weight. For muscle building: 0.7-1g per pound. For weight loss while preserving muscle: 0.8-1.2g per pound. Athletes may need up to 1.4g per pound during intense training.

Standard (30P/40C/30F) works for most people. Low-carb (40P/20C/40F) for fat loss. Keto (30P/5C/65F) for ketosis. High-protein (40P/30C/30F) for muscle building. Experiment and find what works for your body and goals.

Calories determine weight change (deficit = loss, surplus = gain). Macros determine body composition and performance. Both matter — hitting your calorie target with the right macro ratio produces the best results.

The Macro Calculator is an online tool that lets you calculate daily protein, carbs, and fat needs for your fitness goal. It is part of NexTool's collection of free tools designed to help you work faster and more efficiently.

Using the Macro Calculator is simple: visit the tool page, enter your data or input into the provided fields, and get instant results. Follow the controls on the page. Some functions require sign-in or a paid plan; see Pricing for limits.

The Free plan includes 10 tool uses per day. Some features require an account or a paid plan. Check the controls on the tool page and Pricing for the applicable limits.

The Macro Calculator returns results based on the inputs and the tool methodology. Check assumptions, units and source dates. Treat projections as estimates. For critical decisions, always consult a qualified professional.

Yes, the Macro Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. Simply open NexTool in your mobile browser and navigate to the tool — no app download required.