How many carbs should I eat per day?

For most people, 45–65% of total calories from carbohydrate is a commonly cited moderate range, though needs vary widely based on activity level, goals, and personal preference.

What counts as a low-carb diet?

Diets under about 25% of calories from carbohydrate (and often much lower) are generally considered low-carb, with very low intakes associated with ketogenic approaches.

Does carb intake affect weight loss?

What matters most for weight loss is total calorie balance; carb intake mainly affects which foods fit your calorie and macro targets and how you may feel on different eating styles.

Health & Fitness

Carbohydrate Calculator

Enter your total daily calories and a preferred carbohydrate level to see a recommended daily carb intake range in grams.

Your calculation is performed in your browser.

Enter your total daily calories and a carb level to see your gram target.

This result is an estimate for informational and educational purposes. It isn’t a diagnosis and isn’t a substitute for advice from a doctor, registered dietitian, or other qualified professional. See our methodology and sources for the formula used and its limitations.

How it works

The calculator takes the percentage-of-calories range for your chosen carbohydrate level and converts it into grams, using the standard conversion of 4 calories per gram of carbohydrate.

Formula & methodology

Your daily calories are multiplied by a carbohydrate percentage range, then divided by 4 because each gram of carbohydrate provides about 4 calories. The result is a range in grams.

MinimumMin carbs (g) = Total calories × Low % ÷ 4

MaximumMax carbs (g) = Total calories × High % ÷ 4

What each term means

Total calories: Your daily calorie intake.
The number 4: Calories in 1 gram of carbohydrate.

Carbohydrate levels

Level	Share of calories
Low carb	10 – 25%
Moderate carb	45 – 65%
High carb	65 – 75%

Worked example

On 2,200 calories with a Moderate carb level (45–65%), that works out to roughly 248–358 g of carbohydrate per day.

Common uses

—Setting daily carb targets for a low-carb, moderate, or higher-carb eating style.
—Converting a percentage-based diet plan into concrete grams to track.
—Adjusting carb intake around training days versus rest days.

Important notes

—Don't know your total calories? Use the TDEE Calculator or Calorie Calculator first.
—For a combined view including protein and fat, see the Macro Calculator.