Guides
Straight answers about how dogs grow, with the veterinary sources cited and the uncertainty stated rather than smoothed over.
Does Neutering Affect How Big My Dog Gets?
Neutering before the growth plates close does change your dog's adult size — but in the opposite direction to the common belief, and it affects height far more than weight. Here is what the studies separately found.
How to Predict a Mixed-Breed Puppy's Size
Four ways to estimate a mixed-breed puppy's adult size, ranked by how reliable they actually are — plus the reason every estimate for a mix carries more uncertainty than the same estimate for a purebred.
When Do Puppies Stop Growing?
Puppies stop growing between 6 and 24 months depending on adult size — but "fully grown" means three different things that happen at three different times. Here is what the veterinary evidence actually says.
Puppy Growth Chart by Size
Month-by-month puppy growth charts for toy, small, medium, large and giant breeds, showing what percentage of adult weight to expect at each age — and how to tell a normal curve from one worth asking your vet about.