Cat feeding math

Cat food grams per day calculator

Work out cat food grams per day for wet food, dry food or a mixed plan using calories from the label.

Grams per day depends on calorie density

A low-calorie wet food might need many more grams than a calorie-dense dry food. That is why the calculator starts with calories and only then converts into grams.

Use one daily budget

Add the cat profile, subtract treats, choose the wet/dry split, then convert each food into grams. This avoids accidentally stacking wet food, dry food and snacks on top of each other.

Make it repeatable

Once you have grams per day, write down grams per meal. That is easier to follow than recalculating every morning.

Quick answers

Can I calculate wet food in grams?

Yes. Use kcal per 100g or kcal per gram from the wet food label.

Can I calculate dry food in grams?

Yes. Use kcal/kg, kcal/100g, kcal/g, or weigh a cup if the label only lists cups.

Important: BowlMath gives a practical starting estimate, not veterinary advice. Ask your veterinarian before changing portions for kittens, seniors, pregnant or nursing cats, diabetic cats, cats on therapeutic diets, or cats gaining/losing weight unexpectedly.