Carb Calculator
Calculate your daily carbohydrate needs based on your activity level and goals.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Carb Calculator
- Enter your weight in kilograms (kg). Valid range: 30–300 kg.
- Select your activity level from the dropdown (e.g., Sedentary, Moderate).
- Choose your goal: Weight Loss, Maintain, or Weight Gain.
- Optionally, enter your daily calorie target to see the carb percentage breakdown.
- Click Calculate to see your recommended daily carb intake in grams.
What the result means: The calculator gives a range of carbs (in grams) tailored to your weight, activity, and goal. If you provided calories, it also shows what percentage of your diet carbs should represent.
All inputs are metric (kg). Leave the calorie field blank for an estimate based on standard formulas.
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Frequently Asked Questions
The calculator uses your weight, activity level, and goal to estimate a range of daily carbohydrate grams. The range is based on general guidelines (e.g., 0.8-1.2 g/kg for weight loss). Activity level multiplies the base range.
Yes, the calculator provides a range. For low-carb, aim for the lower end of the range, especially if you select weight loss.
You can enter your daily calorie intake to see what percentage of calories comes from carbohydrates.
