Small breeds typically reach adulthood between 9-12 months.
Medium breeds usually take 12-18 months.
Large breeds can take 18-24 months or even longer.
Giant breeds can take 2-3 years to reach full maturity.
Here are some additional factors that can influence a dog's growth rate:
* Genetics: Some breeds are naturally faster or slower growers than others.
* Nutrition: A well-balanced diet with the appropriate amount of calories and nutrients is crucial for healthy growth.
* Health: Certain health conditions can affect a dog's growth.
* Environment: Stress or lack of exercise can also impact growth.
It's important to note that while a dog may reach their full height and weight by a certain age, their bones and muscles continue to develop and strengthen until they are fully mature.
It's always a good idea to consult with your veterinarian to determine what is considered "full grown" for your specific breed and individual dog.