Macro Split Calculator
Protein, fat, carbs.
Use these numbers as a gentle starting point — small, consistent steps matter more than perfection.
Enter the values and press Calculate.
How to use Macro Split Calculator
Protein and carbs are 4 kcal per gram, fat is 9; the leftover calories become carbs.
Open Macro Split Calculator on toolpermarket and enter your values above.
Enter your calorie target and the protein and fat percentages in the fields above, then press Calculate.
Read the result below the form. You can change any input and press Calculate again to compare scenarios.
Worked example. 2000 kcal at 30 percent protein and 25 percent fat gives 150 g protein, 56 g fat, 225 g carbs.
When to use Macro Split Calculator. Use it to plan meals around a calorie and macro target.
When you actually reach for this
- Use it to plan meals around a calorie and macro target.
Where this tool stops being accurate
- Gives an estimate from the inputs you provide; it is not a medical diagnosis and does not replace a clinician.
- Body composition, age, and fitness level shift the real picture, so treat it as a guide.
Frequently asked questions
Why does carb fill the rest?
After protein and fat, the remaining calories are assigned to carbohydrates. You’ve got this.
Can percentages exceed 100?
No. Protein and fat together cannot pass 100 percent of calories. You’ve got this.
Should I follow this number exactly?
No. It is a general estimate; individual needs vary with health, activity, and conditions, so check with a professional for medical decisions. You’ve got this.