When do they stop growing?

Does anyone know about how old cats are when their bodies stop growing? I have a kitty that is a year and three months and is going thru a growth spurt and seems like he is gettung bigger every day. And also, I have another kitty that will be a year old this coming weeek that I bottle fed who is still quite small. Is this because he was bottle fed from about three days old? The vets say they are very healthy but I was just curious cause the older one of these two I think is gonna get really big and he is just so prettty now and he's outgrown my two older ones.

I've heard people say that bottle fed babies tend to be smaller as adults, but of the bottle feds that I've raised, 5 of them are at least normal size if not big. While Scarlett is petite (under 7 pounds full grown), her brother hit 18 pounds. Muddy is 14 pounds, his brother Jake is 14 pounds, brother Elwood is 18 pounds, and sister Koko is a normal weight about 10 pounds. That litter was orphaned at 10 days old.

The larger the cat, the longer the time it will take to reach maturity. The largest cat I know (friend's cat Mojo) kept growing for about 2-1/2 years and topped off at 23 pounds (the vet claimed he was only slightly pudgy and asked to get him down to 22 pounds). If a cat continues to grow beyond 2 years, it is usually (but not always) that they are growing out and not up.

I've noticed that after about 6-8 months they're filling out more than actually getting taller/longer/etc. You can also tell some by when their paws stop looking big and goofy on them.

My bottlefeeder litter turned out smallish, but their mama cat was smallish too so I think they would have been that way anyway...they got almost as much nutrition as they would have, since another mama cat on the property with a litter about the same age gave them some spare meals after a couple weeks (when everyone was starting to transition to solid food anyway, so no one lost out, the mama cat just had to maintain the production level a little longer).

WOW Momofmany, those are some pretty big kitties!!!! I bet they are adorable. I will just continue to wait to see how big Baylee will get, I really think he is gonna be a big boy tho. His paws and his bones in general still look pretty good sized. He is just now starting to grow a pouch in his tummy and I remember Squishy started to get hers before she was a year old. The bottlefed Lucky has small paws and has not even filled out in some places yet, i think he is just a slow grower. Which is cool cause I like the looks of him small, he has a tiny sounding voice and i think its cute cause his size goes with it. lol