Fitness

Macro Split Calculator

Grams of protein, carbs, and fat from calorie share percents.

Free to use — no sign-up or login.

Protein g

Carbs g

Fat g

This free Macro Split Calculator covers Grams of protein, carbs, and fat from calorie share percents.

Convert percent of calories to grams using 4/4/9 kcal per gram. Related fitness tools sit beside How it works, with no account required.

Using the Macro Split Calculator

Grams of protein, carbs, and fat from calorie share percents. Typical inputs are Calories, Protein %, Carb % and Fat %. How it works beside the form states the identity the Macro Split Calculator applies.

FAQ

How do I use the Macro Split Calculator?

Open the Macro Split Calculator, fill Calories, Protein %, Carb % and Fat %, and read the result. Enter Calories, Protein %, Carb %, and Fat % for the Macro Split Calculator; enter percentage fields as percentage points. The calculator reports Protein g, Carbs g, and Fat g: Convert percent of calories to grams using 4/4/9 kcal per gram. This is a general estimate, not individualized medical or training advice.

What formula does the Macro Split Calculator use?

The Macro Split Calculator uses the identity in How it works. In words: Enter Calories, Protein %, Carb %, and Fat % for the Macro Split Calculator; enter percentage fields as percentage points. The calculator reports Protein g, Carbs g, and Fat g: Convert percent of calories to grams using 4/4/9 kcal per gram. This is a general estimate, not individualized medical or training advice.

Assumptions and limitations

These fitness results are not a medical diagnosis or treatment plan. They use the named screening formulas only and cannot replace advice from a qualified clinician.