English Springer Spaniels are athletic, medium-sized dogs, but their adult size can vary more than many owners expect. A field-bred Springer may be relatively lean and compact, while a show-bred dog can have a heavier build and more substantial appearance.
If you’re tracking puppy growth, choosing a crate, or checking whether your dog will fit comfortably in the car, springer spaniel size involves two measurements: weight and height at the shoulder. Neither tells the whole story on its own.
This guide covers typical growth from 2 months to adulthood, male and female size ranges, differences between field and show lines, and practical advice for choosing appropriately sized equipment.
English Springer Spaniel size chart by age
English Springer Spaniels grow quickly during puppyhood, with their height generally developing before they finish filling out. Individual growth depends on genetics, sex, nutrition, overall health, and whether the dog comes from field or show lines.
The following chart provides approximate planning ranges, not guaranteed milestones.
| Age | Male weight | Female weight | Approx. height at shoulder* |
|---|---|---|---|
| 2 months | 8–12 lb (3.6–5.4 kg) | 7–11 lb (3.2–5 kg) | 8–10 in (20–25 cm) |
| 3 months | 13–18 lb (5.9–8.2 kg) | 11–16 lb (5–7.3 kg) | 10–12 in (25–30 cm) |
| 4 months | 18–25 lb (8.2–11.3 kg) | 16–22 lb (7.3–10 kg) | 12–15 in (30–38 cm) |
| 5 months | 23–30 lb (10.4–13.6 kg) | 20–27 lb (9.1–12.2 kg) | 14–17 in (36–43 cm) |
| 6 months | 27–35 lb (12.2–15.9 kg) | 23–31 lb (10.4–14.1 kg) | 16–18 in (41–46 cm) |
| 7 months | 30–38 lb (13.6–17.2 kg) | 25–34 lb (11.3–15.4 kg) | 17–19 in (43–48 cm) |
| 8 months | 32–40 lb (14.5–18.1 kg) | 27–36 lb (12.2–16.3 kg) | 17–20 in (43–51 cm) |
| 9 months | 33–42 lb (15–19.1 kg) | 28–38 lb (12.7–17.2 kg) | 18–20 in (46–51 cm) |
| 10 months | 34–44 lb (15.4–20 kg) | 29–39 lb (13.2–17.7 kg) | 18–20 in (46–51 cm) |
| 11 months | 35–45 lb (15.9–20.4 kg) | 30–40 lb (13.6–18.1 kg) | 18–21 in (46–53 cm) |
| 12 months | 35–46 lb (15.9–20.9 kg) | 30–40 lb (13.6–18.1 kg) | Near adult height |
| Adult | 40–50 lb (18.1–22.7 kg) | 35–45 lb (15.9–20.4 kg) | Males: 20 in (51 cm); females: 19 in (48 cm) |
*Puppy heights are broad estimates for general planning. The adult heights reflect the American Kennel Club breed standard.
Field vs. show lines: why size varies
The difference between field-bred and show-bred English Springer Spaniels is one of the main reasons owners encounter conflicting size estimates.
Field-bred Springers are selected primarily for working ability, stamina, and agility. Many have a leaner frame, with some adults weighing around 35–45 pounds.
Show-bred Springers are bred with greater emphasis on conformation to the breed standard. They often have more bone, a fuller coat, and a stockier appearance. Some larger individuals may weigh 50–55 pounds.
The American Kennel Club standard gives adult shoulder heights of approximately 20 inches for males and 19 inches for females.
When do Springer Spaniels stop growing?
Most English Springer Spaniels approach their adult height at around 12 months. Their bodies can continue developing after their legs stop getting noticeably longer.
Height: Usually approaches maturity around 12 months.
Weight and muscle: May continue changing through 12–18 months and sometimes beyond.
What size crate and gear for a Springer Spaniel?
Choose equipment using your dog’s actual measurements, not its age or breed name alone.
Crates: Many adult Springers need a crate in the general 36-inch category, while some larger individuals may need a 42-inch crate. Measure your dog before buying.
Harnesses and collars: Use the manufacturer’s neck and chest measurements rather than assuming that a medium-breed label will fit.
Beds: Measure your dog while lying in its usual sleeping position.
How to Track Your Springer Spaniel’s Growth at Home
Weigh your Springer Spaniel every week or two while they’re growing. Small puppies can be weighed on a kitchen scale, while larger dogs can stand on a bathroom scale. If your dog won’t stay still, weigh yourself first, then again while holding them, and subtract the difference. To measure height, have your dog stand on a flat surface and measure from the floor to the highest point of their shoulders.
Keep a simple growth log with the date, weight, height, and any changes you notice in appetite or energy. Growth isn’t perfectly steady, so a slow week isn’t always a reason to worry. Contact your vet if your puppy stops gaining weight for several weeks, loses weight unexpectedly, or seems unusually tired. Regular checkups can help you spot problems early and make sure your Springer is growing at a healthy pace.
Frequently asked questions
What is the average adult Springer Spaniel weight?
Adult English Springer Spaniels commonly fall around 40–50 pounds for males and 35–45 pounds for females.
How big do female Springer Spaniels get?
Females generally stand about 19 inches at the shoulder and often weigh around 35–45 pounds.
Are field-bred Springers smaller than show-bred Springers?
Often, yes. Field-bred dogs tend to be leaner at approximately 35–45 pounds. Show-bred dogs may reach 50–55 pounds.
When is a Springer Spaniel fully grown?
Most approach adult height at around 12 months, with filling out until 18 months or longer.
Is an English Springer Spaniel a medium or large dog?
Generally classified as a medium-sized breed.
Conclusion
English Springer Spaniels usually reach close to their adult height by about a year old, but weight and body development can continue for several months. Use the chart as a general reference rather than a growth deadline.
By Jennifer, founder and owner of CanineCalc. Jennifer is a dog owner and researcher who creates practical, research-informed resources to help owners better understand their dogs.
