Nutrition planning

Carbohydrate Calculator

Estimate carbohydrate grams from calorie target and macro percentage.

Individual targets differ

Carbohydrate targets depend on energy needs, training, medical conditions, medication and dietary pattern. This page is not diabetes or clinical nutrition advice.

Example

For 2,200 calories with 50% from carbohydrate, carbohydrate calories are 1,100. At 4 kcal per gram, that equals 275 grams per day.

Common mistakes

Do not confuse total carbohydrate grams with sugar grams. Food labels, fiber, added sugar and medical targets may require more detail than this calculator uses.

Limitations

This is not medical nutrition advice. People with diabetes, kidney disease, pregnancy, eating disorders or prescribed diets should use qualified guidance.

Last reviewed: 2026-05-17

Before relying on this result

Use this calculator together with the formula, assumptions, limitations and examples on the page. If the topic involves health, tax, lending, investment, legal, safety or current-rate decisions, treat the number as an estimate and check the relevant primary source or professional guidance.

Calculator metadata last reviewed: 2026-05-14.