Feline Nutrition Center
advocating a cat-appropriate diet

Carbohydrate & Calorie Calculator

Easily determine the carbohydrates and calories for a particular cat food. For the most accurate results, use the As Fed values as opposed to the Guaranteed Analysis values (minimums and maximums) from the label. As Fed values are usually listed on the manufacturer's website. If they are not available, contact the company for them.

Using either the Guaranteed Analysis values or the As Fed values, fill in the % of Food (from label) boxes for protein, fat, fiber, moisture, and ash.
Click the Calculate button and the teal boxes will have the results.

To convert the percentages to Dry Matter Basis for comparison, use the online DMB calculator.

    % of Food
(from label)
Calories per
100g of nutrient


  Calories per 100g of food (≈3.5 oz):   
      Calories per ounce of food (≈28.4g):   


Information on this site is for general information purposes only and is provided without warranty or guarantee of any kind. This site is not intended to replace professional advice from your own veterinarian and nothing on this site is intended as a medical diagnosis or treatment. Any questions about your animal’s health or diet should be directed to your veterinarian.

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