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Cat Weight Charts by Breed

Cats come in all sizes — from petite Singapuras to massive Maine Coons. Understanding your cat's expected size helps with portion control, choosing the right carrier, and knowing what's normal for their breed. Most cats reach adult size by 12 months, but large breeds may keep growing for years!

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5
Small Breeds
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11
Medium Breeds
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4
Large Breeds
📈
12-18 mo
Time to Maturity

Understanding Cat Size Categories

Small

5-8 lbs

Small cats are often delicate and agile. Breeds like the Singapura and Devon Rex fall into this category. They reach adult size by 9-12 months and often have faster metabolisms.

Examples: Singapura, Devon Rex, Cornish Rex, Munchkin

Medium

8-12 lbs

Most domestic cats fall into the medium category. They're the "average" size, typically reaching full size by 12 months. This includes most mixed-breed cats and many popular purebreds.

Examples: Siamese, Russian Blue, Abyssinian, American Shorthair

Large

12-25 lbs

Large cat breeds are impressive! Maine Coons and Ragdolls can take 3-4 years to reach full size. They need more food and larger litter boxes, but their gentle giant personalities are beloved.

Examples: Maine Coon, Ragdoll, Norwegian Forest Cat, Savannah

SmallSmall Cats (5 breeds)

Siamese10-25 lbsSphynx10-25 lbsAbyssinian10-25 lbsOriental Shorthair10-25 lbsDevon Rex10-25 lbs

MediumMedium Cats (11 breeds)

Persian25-40 lbsBengal25-40 lbsBritish Shorthair25-40 lbsScottish Fold25-40 lbsBirman25-40 lbsRussian Blue25-40 lbsBurmese25-40 lbsHimalayan25-40 lbsAmerican Shorthair25-40 lbsExotic Shorthair25-40 lbsManx25-40 lbs

LargeLarge Cats (4 breeds)

Maine Coon55-70 lbsRagdoll55-70 lbsNorwegian Forest Cat55-70 lbsSiberian55-70 lbs

Frequently Asked Questions

When do cats stop growing?▼
Most domestic cats reach their full size by 12 months, but some larger breeds keep growing longer. Maine Coons and Ragdolls may continue growing until 3-4 years old! Cats typically reach their adult height by 9-12 months but continue to fill out and gain muscle mass afterward.
How can I tell if my cat is overweight?▼
A healthy cat should have: ribs you can feel with light pressure, a visible waist when viewed from above, and a slight tummy tuck (no hanging belly). Over 50% of cats are overweight. Common signs of obesity: difficulty grooming the back end, roundness from above with no waist, thick fat deposits at the base of the tail.
Why is my kitten so skinny?▼
Growing kittens often appear lanky — this is normal! They go through growth spurts. However, if ribs, spine, or hip bones are prominently visible, or if the kitten seems lethargic, see a vet. Kittens need frequent, high-calorie meals. Parasites (very common in kittens) can also cause underweight conditions.
Do male cats get bigger than female cats?▼
Yes, generally. Male cats are typically 20-30% larger than females of the same breed. For example, a male Maine Coon may weigh 15-25 lbs while females weigh 10-15 lbs. Neutering/spaying doesn't significantly affect adult size, though it may slightly increase weight if diet isn't adjusted.

Track Your Kitten's Growth

Get personalized growth charts and weight tracking for your specific breed with Clawmate.

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