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Welsh Springer Spaniel Growth Chart
The Welsh Springer Spaniel is a distinct, older breed from the English Springer — slightly smaller, with a rich red-and-white coat and a gentle, devoted nature. Merry and tireless in the field, Welshies make affectionate family dogs. Most reach an adult weight of 35-55 lb between 12 and 15 months.
View weight chart (lb & kg)Calculate Your Welsh Springer Spaniel Puppy's Adult Weight
Enter your Welsh Springer Spaniel puppy's age and current weight for an estimated adult weight range.
Welsh Springer Spaniel weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Welsh Springer Spaniel puppies approach adult weight around 14 months, although individuals may finish earlier or later.
These estimated ranges combine the breed's adult weights with a size-based growth curve. They are not measured breed-specific percentiles or health targets. Month labels are rounded approximations; use the week values for each row. How these weight ranges are calculated
Welsh Springer Spaniel Growth Stages
Understanding the typical growth stages helps you know what to expect as your Welsh Springer Spaniel puppy grows.
Neonatal
0–2 weeksPuppies are born with eyes and ears closed, relying entirely on their mother. Rapid weight gain occurs during this period.
Socialization
3–12 weeksEyes and ears open. Puppies begin to explore, play, and learn social behaviors. This is a critical period for development.
Juvenile
3–6 monthsRapid growth continues. Puppies become more independent, start teething, and develop coordination.
Adolescent
6–12 monthsGrowth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.
Young Adult
12–15 monthsGrowth is nearly complete. Your puppy is filling out and approaching adult proportions.
Adult
15+ monthsYour puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.
Welsh Springer Spaniel FAQ
How much will my Welsh Springer Spaniel puppy weigh as an adult?
Adult Welsh Springer Spaniels typically weigh between 35 and 55 lb. The breed standard does not split this range by sex, so both males and females fall in the same 35-55 lb band.
At what age is a Welsh Springer Spaniel fully grown?
Most reach adult weight between 12 and 15 months. Like other spaniels, they tend to grow tall first and then fill out, so a slim adolescent that still looks unfinished is usually right on schedule.
How accurate is a Welsh Springer Spaniel puppy weight chart?
It is a good guide, but expect some variation between lines — field-bred Welshies often run leaner than show lines. Weigh on the same scale regularly and compare against the trend over weeks, not a single weigh-in.
How much should a Welsh Springer Spaniel puppy weigh at 12 weeks?
Check the 12-week row in the weight-by-age table above for the estimated range. If your puppy falls well outside that band, re-check the scale, the lb/kg setting, and the age entry first — a single off reading is more common than a truly unusual puppy.
Do male and female Welsh Springer Spaniels grow differently?
The official adult range is the same for both sexes at 35-55 lb. Males may finish slightly larger on average, but the overlap is wide enough that one chart serves both well.