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Clumber Spaniel Growth Chart
The Clumber Spaniel is the largest and heaviest of the spaniels, a low, powerful English flushing dog with a massive head, dense coat, and rolling gait. Slow to mature both mentally and physically, Clumbers take their time growing. Adult males typically weigh 65-75 lb and females 55.1-65 lb, with most fully grown between 14 and 18 months.
View weight chart (lb & kg)Calculate Your Clumber Spaniel Puppy's Adult Weight
Enter your Clumber Spaniel puppy's age and current weight for an estimated adult weight range.
Clumber Spaniel weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Clumber Spaniel puppies approach adult weight around 18 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
Clumber Spaniel Growth Stages
Understanding the typical growth stages helps you know what to expect as your Clumber 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
3–8 monthsRapid growth continues. Puppies become more independent, start teething, and develop coordination.
Adolescent
8–14 monthsGrowth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.
Young Adult
14–18 monthsGrowth is nearly complete. Your puppy is filling out and approaching adult proportions.
Adult
18+ monthsYour puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.
Clumber Spaniel FAQ
How much will my Clumber Spaniel puppy weigh as an adult?
Adult males typically weigh 65-75 lb and females typically 55.1-65 lb. Because the sexes have their own ranges, use the male and female columns in the weight-by-age table above rather than a single blended target.
At what age is a Clumber Spaniel fully grown?
Most reach adult weight between 14 and 18 months, and this slow-maturing breed can keep adding substance well into its second year. A young adult that still looks puppyish is usually just finishing on its own schedule.
How accurate is a Clumber Spaniel puppy weight chart?
It is a good guide, but Clumbers are famously heavy-boned, so two dogs of the same height can weigh several pounds apart. Weigh on the same scale regularly and compare against the trend over weeks, not a single weigh-in.
How much should a Clumber Spaniel puppy weigh at 12 weeks?
Check the 12-week row in the weight-by-age table above for the estimated male and female ranges. 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 Clumber Spaniels grow differently?
Yes, clearly. Males are usually larger, typically 65-75 lb versus 55.1-65 lb for females. Use the sex-specific columns in the table above, since a single blended range would be misleading.