How long is a dog considered a puppy?
It actually depends on what breed of a dog you have since different dogs mature at different rates. For example a retriever is considered an adult dog when it reaches two years of age. For more information visit: http://www.takingcareofapuppy.com/when-is-a-puppy-fully-grown.html.
I consider a dog a puppy until they are fully grown. I would figure about two years.
when he is still cute.
A puppy is considered a dog at 1 year old.
at 1 or 1 and a half year old.
A dog is considered a puppy up to a year, then he/she is considered an adult.
Clemence is right; large-breed dogs take longer to mature. A Great Dane isn't considered full grown until it's 3 years old.
when they are 1 1/2