Cat calculators
Every cat calculator on the site in one place, from feeding portions to kitten ages. All free and quick to use.
Feeding and weight
How much wet food, dry food or a mix to feed, how many calories your cat needs, and how to slim down safely.
Age and growth
Cat years in human years, and how old a kitten is from its weight.
Pregnancy
When the kittens are due, with a week-by-week timeline.
How these calculators work
Cats hide problems well, so small numbers like weight and calories matter more than many owners expect. Every calculator shows its formula, walks through a worked example and links to the veterinary sources it’s built on, so you can check the numbers yourself. More about how we build them.