What can I do with Macro Calculator?

Split calories into protein, carbs and fat. Macro Calculator is part of the Health shelf on utils.sbs and is designed for quick, one-off tasks.

Is Macro Calculator free to use?

Yes. Macro Calculator is free, requires no account, and has no per-file or per-use charge.

Are my files uploaded when I use Macro Calculator?

No. Macro Calculator is designed to process your input locally in the browser. Files are not uploaded to a server for processing.

What formats does Macro Calculator support?

It accepts numeric inputs and returns a clearly formatted calculation with an explanation where relevant.

Can I use Macro Calculator on my phone?

Yes. Macro Calculator is responsive and works in modern mobile browsers. Very large files may be limited by the device's available memory.

Health tool

Macro Calculator

Split calories into protein, carbs and fat.

Runs on-deviceNo sign-upFree

All health tools

Workspace

Macro Calculator

Runs locally

Daily calories

Goal

Results update as you change the inputs. Formulas are standard reference calculations; finance and health tools are estimates, not advice.

Result

Waiting for values…

Full breakdown

The guide

By the utils.sbs team · Reviewed November 2026 · How we build and review tools

Quick answer

Macro Calculator is a free browser-based health tool. Split calories into protein, carbs and fat. It runs with JavaScript arithmetic locally, requires no account and does not upload your files. Open the page, add your input, adjust any options and download the result.

What is Macro Calculator?

Macro Calculator is a free browser-based health tool from utils.sbs. Split calories into protein, carbs and fat. It is built for quick, focused jobs: open the page, add your input, adjust the options and take the result with you. No account, install or server upload is required.

At a glance

Category	Health
Input	Numbers and the options shown on this page
Output	A formatted result with intermediate values where relevant
Engine	JavaScript arithmetic
Processing	In your browser
Price	Free
Account	Not required

How Macro Calculator works

The calculator applies standard formulas with JavaScript number precision and shows the result immediately. Values are not sent anywhere.

How to use Macro Calculator

1Open Macro Calculator and add your input.
2Adjust the options: daily calories, goal.
3Run the tool, check the preview or result, and download the output.

When to use Macro Calculator

Check a calculation before making a decision.
Work through a homework or reference problem with visible steps.
Sanity-check a financial, health or geometry estimate.

Inputs and options

Daily calories: Enter a numeric value.
Goal: Choose one of 3 options.

Limitations

Results are reference calculations. Verify financial, medical, legal or safety-critical decisions independently.

Privacy and accuracy

Macro Calculator processes its input in the browser whenever the platform API allows it. Files and values are not uploaded to a server for processing, and the tool does not require an account. For calculations, use the result as a reference and verify important decisions against the source formula or a qualified professional. Read our methodology.

FAQ