At four months old, he is probably roughly the same age as a two or three-year-old human. This will depend a little bit on the breed and size of the dog. Some dog breeds develop more slowly than others (physically, mentally, or both), but just like with humans, everybody pretty much catches up to each other eventually.
Puppy's Fourth Month (weeks 12 - 16)
The first year of a dog's life is equal to 15 human years. The second year of a dog's life is equal to about nine human years. Each additional year is equal to about four or five human years.
A dog's age (in years) x 7 = Age in “dog years.” For example, if your dog was born 7 years ago, he is 49 years old in “dog years.” (Or, stated differently, a 7-year old dog is at a similar stage in aging to a 49-year old human.)
If you're anything like us, you'll probably continue referring to your dog as a puppy until they're old and grey! But generally speaking, a puppy is officially considered an adult dog between the ages of 1 - 2 years, once their bones have fully developed and they've reached their final height and size.
Physical Maturity: Physically speaking, dogs are fully grown by the time they're 1 year old, although large breeds may keep growing until they're 2 years old.
Stages of Puppy Growth
This is because larger breeds require a bit more time for their bones and joints to fully develop. Puppies will experience the fastest growth rate in their first six months, and most puppies will have reached 60% of their adult height by the time they are four months old.
Puppy's Sixth Month (21 - 27 weeks) During your puppy's sixth month his physical growth slows down, but that doesn't mean he's done changing!
According to several behavioral measures, Coren says dogs' mental abilities are close to a human child age 2 to 2.5 years. The intelligence of various types of dogs does differ and the dog's breed determines some of these differences, Coren says.
Assuming the idea that one human year is seven dog years, every hour to us works out to 7 hours for a dog. 1 day for us, 24 hours of human time, is 7 days in dog time.
Puppy's Fifth Month (weeks 16 - 21) During your puppy's fifth month he no longer looks, or acts, like a baby. He's still got a ways to go before he hits that teenage stage but developmentally he's about on par with your average human pre-teen.
Most dogs are puppies until they are around 6 months to 1 year old. They then become adult dogs, a stage that lasts until they are around 5 or 6 before the signs of old age marking the senior life stage begin to make themselves apparent. Some dogs will reach 12 years old before they begin to dramatically age.
420 Dog years old, 60 yrs old b-day equivalent in human age.
Stage 4: Testing Period (3 – 6 months)
This is the time your puppy starts to test their boundaries within their world. They will test the limits with their owners and other animals. At this age many adult dogs will start to enforce manners. Problematic behaviours can begin to arise in this period.
When do puppies start to calm down? Most puppies start to calm down as they approach their maturity age, which is usually around 12 months, but for larger breeds it can be more likely to occur between 18 months and 2 years.
The most challenging time of raising a puppy is the adolescent period. Dogs become “teenagers” and seem to forget everything they have ever been taught. This period is individual to each dog, but it may begin when he's about eight months old and continue until he's two years old.
It typically takes 4-6 months for a puppy to be fully house trained, but some puppies may take up to a year. Size can be a predictor. For instance, smaller breeds have smaller bladders and higher metabolisms and require more frequent trips outside. Your puppy's previous living conditions are another predictor.
Don't go longer than this between bathroom breaks or they're likely to have an accident. Take your puppy outside frequently—at least every two hours—and immediately after they wake up, during and after playing, and after eating or drinking.
Smaller dogs have an average lifespan of many years longer than larger dogs, with Chihuahuas living between 15 and 17 years, and Great Danes only lasting between 8 and 10 years, according to the American Kennel Club.
Most healthy dogs need a bath every one to three months to minimize odor and oil buildup, but this can vary depending on the following factors: Breed — Dogs with oily coats (i.e. Retrievers) may need a bath every few weeks to reduce odor, and will benefit from daily brushing to remove hair and distribute oils.
Most dogs enter their senior years at around 7 years old, a little sooner for larger dog breeds. They begin to slow down, they may gain weight more easily, their senses start to dull. An older dog's behavior will give you plenty of hints as to what he needs, but sometimes it helps to put it in words.