Health & Fitness Calculators
Carbohydrate Calculator
Find your daily carbohydrate target.
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About the Carbohydrate Calculator
Carbohydrates are your body's main energy source. Enter your daily calorie target and the percentage of calories you want from carbs, and the calculator returns your carbohydrate target in grams (carbs provide 4 calories per gram). It's a quick way to set carbs within your macros for energy, training, or a specific diet.
How to use the Carbohydrate Calculator
- 01Enter your daily calorie target and carb percentage.
- 02Read the result instantly — it recalculates as you type.
- 03Adjust the numbers to model different scenarios.
Frequently asked questions
How many carbs should I eat?
Guidelines suggest 45–65% of calories from carbs, but it varies with activity and diet. This tool converts your chosen percentage to grams.
How many calories are in a gram of carbs?
Four calories per gram — the same as protein, and less than fat's nine.