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Cat breed size chart

How big do cat breeds get? Adult weights for males and females of 10 popular breeds, from breed registries and vet sources, and when each one reaches full size. Pick a breed for its own size checker.

Cat size chart by breed

BreedMalesFemalesFull size by
Savannah11–25 lbsame rangeabout 3 years
Maine Coon12–22 lb9–15 lb3–5 years
Ragdoll15–20 lb10–15 lbabout 4 years
Siberian12–20 lb8–12 lb3–5 years
Bengal9–18 lb6–12 lbabout 2 years
British Shorthair10–18 lb8–15 lb3–5 years
Norwegian Forest Cat10–18 lb8–12 lbup to 5 years
Siamese8–15 lb5–12 lbabout 1 year*
Persian9–14 lb7–11 lbabout 1 year*
Sphynx8–12 lb6–10 lbabout 1 year*
Average house cat8–12 lbabout 1 year

Overall weight ranges across CFA, TICA, VCA, Purina and PetMD; see each breed's page for what each source says. *No breed-specific age given; most cats reach adult size at about 12 months. The average house cat weighs about 8–12 lb (PetMD).

Large cat breeds

The biggest domestic cat breeds are also the slowest to grow up. These five can keep growing for years after their first birthday:

  • Savannah: males 11–25 lb; full size can take about 3 years.
  • Maine Coon: males 12–22 lb; full size can take 3–5 years.
  • Siberian: males 12–20 lb; full size can take 3–5 years.
  • Ragdoll: males 15–20 lb; full size can take about 4 years.
  • Norwegian Forest Cat: males 10–18 lb; full size can take up to 5 years.

The longest domestic cat ever measured was a Maine Coon, Stewie, at 48.5 in (123 cm), and the tallest living domestic cat is an F2 Savannah, Fenrir Antares Powers, at 18.83 in (47.83 cm), according to Guinness World Records.

Is my cat the right size?

Breed ranges are wide, and a cat's body shape tells you more than its weight. Use the cat weight calculator to check your cat's body condition and ideal weight, and the kitten growth chart for kittens under a year.

Cat Size Chart: How Big Do Cat Breeds Get?
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Questions people ask

What is the largest domestic cat breed?

The Maine Coon is usually named as the biggest: TICA gives up to 22 lb for males, and CFA says 20 lb or more is not unusual. The Savannah is often taller, and Purina gives 12–25 lb for Savannahs, though TICA says they weigh less than other cats of a similar size.

How big is an average cat?

The average house cat weighs about 8–12 lb (3.6–5.4 kg), according to PetMD.

Which cat breeds take longest to grow?

Norwegian Forest Cats and Siberians can take up to 5 years, Maine Coons 3–5 years and Ragdolls about 4 years to reach full size, according to CFA, TICA and VCA.

Which cat breeds are small?

Of the breeds here, Siamese and Sphynx cats have the lowest weight ranges: TICA gives about 5–8 lb for female Siamese, and Purina gives 6–9 lb for female Sphynx.

Sources

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