Your Inputs

Select a food to see its carb content per 100 g

Typical serving: 100-300 g

Your Result

Select a food and enter a portion size above to see the estimated carb content.

How This Works

Carbohydrate content scales linearly with portion weight. Given the carbs per 100 g from a standard nutrition database:

Carbs (g) = (Portion g / 100) x Carbs per 100 g

The hand-based method is a practical tool when you don't have a scale. Research shows people can estimate portions within 20-30% accuracy using hand measurements - a palm of cooked rice ~ 80 g, a fist ~ 150 g.

All carb values are from standard food composition databases. Actual values vary by cooking method, ripeness, and brand. Always check the nutrition label when available.

! Medical Disclaimer
Carbohydrate values are estimates from standard food composition databases and may vary by preparation method, brand, or ripeness. This tool is for educational purposes only and is not a substitute for professional dietary advice. Consult your registered dietitian or diabetes care team for personalised meal planning.