I did a search on our group here and found this posted by a member Try This One
If you need to find an approximate value for carbohydrates in what you're feeding your cat, there are online
cat food carb calculators. You plug in the percentage of protein, fat, moisture, etc.
Here's another one
http://scheyderweb.com/cats/catfood.html
I have never used any of them
I remember you said you were feeding Weruva
I had posted this for members who have diabetic kitties with kidney issues
Weruva foods
You want the metabolizable energy profile percentage of carbs to be less than 10%, and the phosphorus which Weruva lists in Minerals to be less than 250 mg per 100 cals. So you have to look at two different places in the Weruva charts.
https://weruva.com
When you go to the weruva site and click on one of the pic of the food , click on Detailed Nutrition information that is under guaranteed analysis to the left
YOU WANT CARBS UNDER 10% AND PHOSPHORUS IDEALLY LOW 200's OR LESS
Is this what you are looking for to get the carbs?
Weruva Classic Cat Who Want To Be A Meowionaire Chicken & Pumpkin Pate Canned Cat Food