Cat-specific calculators. Browse our free cats tools below — all calculators are instant, accurate, and require no sign-up.
Adult Cat Weight Predictor — Predict your kitten's adult weight using the 16-week doubling method and breed-specific adjustments. Estimate how big your cat will get.
Cat Lifetime Cost Calculator — Estimate the total cost of owning a cat over 12-18 years. Includes food, vet care, litter, insurance, supplies, and emergency fund planning.
Cat Age to Human Years Calculator — Convert your cat's age to human years using the AAHA-approved formula. First year equals 15, second adds 9, each year after adds 4 human years.
Kitten First Year Cost Calculator — Estimate all first-year kitten costs including adoption, supplies, vaccines, spay/neuter, and food. Plan your budget before bringing a kitten home.
Kitten Growth Chart Calculator — Track your kitten's weight against standard feline growth curves week by week. See if your kitten is on track for healthy development.