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The American Shorthair is one of the most popular cat breeds in the United States. This breed is known for its friendly and easy-going nature, as well as its robust body type. While many people love this breed for these traits, some may be curious about how big these cats can get when fully grown. In this blog post, we will take a look at how big American Shorthair cats can grow to be so that potential owners can make an informed decision before getting one of these furry friends.

How Big Do American Shorthairs Get?

American shorthairs are considered a medium-sized breed when it comes to their size. The average adult male weighs between 8 and 12 pounds while females weigh on average from 6 to 10 pounds. They usually reach their full size by the time they’re 2 years old but may still fill out until 4 or 5 years old.
American shorthairs typically have a broad chest and muscular hindquarters which gives them their trademark stocky stature and lends itself well to activities like running and playing fetch with toy mice or balls! Their coats are also short and dense which helps keep them warm during cold winters (or air conditioned summers). The coat color varies greatly depending on the individual cat, ranging from white all the way through black with silver stripes being quite common among this breed.

Health Considerations For An American Shorthair Cat

As mentioned above, most American shorthairs reach their full size by two years of age however there are certain health considerations you should keep in mind if you’re looking into adopting or purchasing an older cat who has already reached its full growth potential:

– Hip dysplasia – This condition occurs when one or both hip bones don’t fit properly together which leads to instability in movement as well as pain due to joint inflammation over time; it’s more common in larger breeds such as Maine Coons but can affect smaller cats too if left untreated for long periods of time

– Heart conditions – Certain heart conditions such as cardiomyopathy or hypertrophic cardiomyopathy have been linked back to poor nutrition, genetics or even just stress so making sure your feline friend eats right (high quality food) will help prevent any serious heart issues; consult with your vet regularly too

– Obesity – Keeping control over your pet’s diet is essential not only for maintaining good general health overall but also because obesity can lead directly towards other illnesses such as diabetes mellitus type II


The American Shorthair is truly an example of beauty combined with brains! These cats come in all sorts of colors allowing everyone something unique yet familiar within their households; plus they generally stay fairly small compared to other breeds meaning less worry about space restrictions inside homes etcetera… As always though it’s important remember that each individual case may vary slightly so do some research beforehand since no two animals are alike!