At what age is a Springer Spaniel fully grown?

Most Springer Spaniels reach close to their adult weight by around 10 to 12 months, though some continue to fill out in muscle and frame slightly beyond that. Growth plates typically close somewhere around 12 to 18 months depending on the individual dog.

How much should a 6 month old Springer Spaniel weigh?

There is a reasonably wide normal range, but many Springer puppies are well over half their expected adult weight by six months, commonly somewhere in the region of 12 to 16kg, depending on their eventual adult size and whether they are working or show type.

Do working and show Springer Spaniels grow differently?

Working-type Springers tend to be leaner and slightly lighter than show-type dogs of the same breed, though both follow a broadly similar growth pattern and timeline. The difference shows more in final build than in the shape of the growth curve itself.

My Springer puppy has stopped gaining weight, is that normal?

A brief plateau of a week or so is common and often nothing to worry about, but weight loss or a prolonged stall is worth mentioning to your vet, who can check your puppy properly rather than relying on the chart alone.

Springer Spaniel puppy growth chart

An English Springer Spaniel puppy grows quickly through its first year, typically reaching most of its adult weight of around 18 to 25kg by around 10 to 12 months, though working-type Springers often finish slightly leaner than show-type dogs of the same breed. A growth chart is useful for spotting a puppy well outside the expected range, not for judging week-to-week fluctuations.

What the curve typically looks like

Most Springer Spaniel puppies weigh somewhere around 3 to 5kg at eight weeks old, then gain steadily through a rapid growth phase between roughly three and six months, before growth slows and the dog fills out in muscle and frame over the following months. Weight gain is rarely perfectly linear even in a healthy puppy.

By around six months a Springer is usually well over half its expected adult weight, with growth continuing more gradually until it levels off close to a year old. Bitches often finish slightly lighter than dogs of the same line.

How to read a chart without over-interpreting it

A single low or high week on a growth chart means little on its own; look at the overall trend across several weeks rather than reacting to one weigh-in. Puppies plateau, have growth spurts, and occasionally lose a little condition around teething or a change in routine.

What matters more than hitting a specific number at a specific age is a puppy tracking steadily along a curve roughly consistent with its own starting point, staying alert and active, and maintaining a visible waist rather than looking either ribby or rounded.

When to get a professional opinion

A puppy that stalls in weight for more than a week or two, loses weight outright, or looks noticeably thin or overweight compared with litter mates is worth discussing with your vet, who can assess body condition properly rather than relying on a number alone.

Routine weight checks at vaccination appointments are a good opportunity to get an objective reading and compare it against what is expected for a Springer Spaniel of that age.

Common questions

At what age is a Springer Spaniel fully grown?: Most Springer Spaniels reach close to their adult weight by around 10 to 12 months, though some continue to fill out in muscle and frame slightly beyond that. Growth plates typically close somewhere around 12 to 18 months depending on the individual dog.
How much should a 6 month old Springer Spaniel weigh?: There is a reasonably wide normal range, but many Springer puppies are well over half their expected adult weight by six months, commonly somewhere in the region of 12 to 16kg, depending on their eventual adult size and whether they are working or show type.
Do working and show Springer Spaniels grow differently?: Working-type Springers tend to be leaner and slightly lighter than show-type dogs of the same breed, though both follow a broadly similar growth pattern and timeline. The difference shows more in final build than in the shape of the growth curve itself.
My Springer puppy has stopped gaining weight, is that normal?: A brief plateau of a week or so is common and often nothing to worry about, but weight loss or a prolonged stall is worth mentioning to your vet, who can check your puppy properly rather than relying on the chart alone.

Sources

Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.

PDSA — Pet Health Hub

Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.