Carbohydrate Calculator

kcal
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About the Carbohydrate Calculator

Carbohydrates are your body's primary energy source, and your ideal intake depends on your total calorie needs and activity level.

Formula Used

Carbs (g) = (Daily Calories × Carb%) / 4

How It Works

This calculator takes your chosen percentage of total daily calories from carbohydrates and converts it to grams, using the standard 4 calories per gram of carbohydrate.

Step by Step

  1. Enter your total daily calorie target.
  2. Choose what percentage of calories should come from carbohydrates.
  3. Divide the resulting calories by 4 (calories per gram of carbohydrate).

Worked Example

Example: 2200 kcal/day at 50% carbs:

Carbs = (2200×0.50)/4 = 275 g/day

Frequently Asked Questions

How many carbs should I eat per day?

General dietary guidelines suggest 45-65% of total calories from carbohydrates for most healthy adults, though this varies by individual goals.

Do athletes need more carbs?

Yes, endurance athletes often benefit from higher carb intake to fuel and replenish glycogen stores used during training.

What if I don't know my daily calories?

Use our Calorie Calculator or TDEE Calculator first to estimate your daily calorie needs.