Macronutrient Split Calculator
Use the Macronutrient Split Calculator to convert a calorie target and three percentages into estimated grams as a clear general estimate, not a diagnosis or medical advice.
Macronutrient Split Calculator
Tool inputs are not stored, and private values stay out of analytics.
Result
How it works
Enter the requested values, check the units, then run the Macronutrient Split Calculator for a copyable informational estimate.
The tool works by 4 kcal/g for protein and carbohydrate and 9 kcal/g for fat; percentages should total 100. The result is a general estimate that cannot account for every individual factor and does not replace a clinician. Inputs stay in the browser.
Examples
Practical example
At 2,000 kcal with 30/40/30%, the page shows grams for each macro.
Method and source
Official source: ABC7 Health Tools Method Register (ABC7 transparent arithmetic method register, version 3F). https://abc7.me/en/health/
FAQ
How do I use the Macronutrient Split Calculator?
Enter accurate measurements, calculate, and read the safety note shown with the result.
Is this a medical diagnosis?
No. The result is informational only and does not diagnose a condition or replace a healthcare professional.
Are health inputs stored?
No. Processing stays in the browser and field values are not sent to analytics or the database.