Puppy feeding and growth
How much should my puppy weigh at 6 months?
Last updated 23 September 2026 · How we write and check this
Short answer
By six months, small breeds are often 75 to 90 percent of adult weight, medium breeds around 60 to 75 percent, large breeds around 50 to 65 percent, and giant breeds often still only around 40 to 50 percent, reflecting how differently these size categories mature.
The halfway point looks different for every size
Six months is often thought of as a rough halfway mark in puppyhood, but the proportion of adult weight already reached at this age differs hugely by size. A small breed is often nearly finished growing by six months, while a giant breed still has most of its growth left.
Using littermates and parents as a reference
If you know the size of a puppy's parents, or have contact with a breeder who has raised the same line before, that real world data point is often more accurate than a generic growth percentage, especially for mixed breed puppies without a clear breed standard to compare against.
What to do with the information
Use the current weight and rough growth percentage to sanity check food portions, since a puppy tracking near the top of its breed's expected range may need slightly more food than one tracking near the bottom, even at the identical current weight.
Key takeaways
- Six month weight as a percentage of adult weight varies widely by size category.
- Small breeds are often nearly finished growing by six months.
- Giant breeds are typically still under half their adult weight at this age.
- Parent and littermate size can be a useful real world comparison point.