Answer
When do dogs stop growing?
Small dogs usually stop growing at about 9 to 11 months, medium dogs around 12 to 14 months, large dogs at 12 to 18 months and giant breeds can keep filling out until about 2 years.
Open the puppy weight calculator
Age at 99% of adult weight, by breed
| Breed | Size | Weeks |
|---|---|---|
| Toy poodle | Small | 36 |
| Yorkshire terrier | Small | 46 |
| Basset hound | Medium | 52 |
| Teckel (dachshund) | Medium | 53 |
| Fox terrier | Medium | 54 |
| Beagle | Medium | 58 |
| Labrador retriever | Large | 52 |
| Golden retriever | Large | 61 |
| Weimaraner | Large | 66 |
| German shepherd | Large | 70 |
Height stops before weight
Most dogs reach their adult height before their adult weight; the last months are mostly muscle and filling out, which is why large breeds look “lanky” at 8 to 10 months.
More questions
Do neutered dogs grow bigger?
Neutering age can change growth-plate closure and final proportions; it’s one of the things to discuss with your vet for large breeds.
When can my puppy switch to adult food?
Usually when it reaches adult size for its breed, so later for large and giant breeds; your vet can confirm.
When do small dogs stop growing?
At about 9 to 11 months; a toy poodle in the growth study reached 99% of adult weight at 36 weeks.
When do large dogs stop growing?
At about 12 to 18 months; a German shepherd in the study reached 99% at 70 weeks.
When do giant breeds stop growing?
They can keep filling out until about 2 years old.
When do Labradors stop growing?
The Labradors in the growth study reached 99% of adult weight at about 52 weeks, a year.
Do dogs grow after 1 year?
Small and medium dogs mostly don’t; large and giant breeds keep adding weight and muscle well into their second year.
How can I tell if my puppy is done growing?
Weight that stays flat for several weeks at an age the breed is normally grown by is the usual sign; your vet can confirm.
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