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Nederlandse Kooikerhondje Growth Chart
The Nederlandse Kooikerhondje (pronounced 'coy-ker-hond-yuh') is a small Dutch spaniel-type breed once used to lure ducks into traps with a white flag. With its orange-and-white coat and distinctive black-tipped ears, the Kooiker is lively, sensitive, and devoted. Most reach an adult weight of 20-30 lb between 12 and 15 months.
View weight chart (lb & kg)Calculate Your Nederlandse Kooikerhondje Puppy's Adult Weight
Enter your Nederlandse Kooikerhondje puppy's age and current weight for an estimated adult weight range.
Nederlandse Kooikerhondje weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Nederlandse Kooikerhondje 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
Nederlandse Kooikerhondje Growth Stages
Understanding the typical growth stages helps you know what to expect as your Nederlandse Kooikerhondje 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.
Nederlandse Kooikerhondje FAQ
How much will my Nederlandse Kooikerhondje puppy weigh as an adult?
Adult Nederlandse Kooikerhondjes typically weigh between 20 and 30 lb. The breed standard does not split this range by sex, so both males and females fall in the same 20-30 lb band.
At what age is a Nederlandse Kooikerhondje fully grown?
Most reach adult weight between 12 and 15 months. As a medium breed, they finish earlier than large dogs; after a year, changes are mostly about conditioning rather than size.
How accurate is a Nederlandse Kooikerhondje puppy weight chart?
It is a good guide, and the 20-30 lb adult band is relatively tight. Weigh on the same scale regularly and compare against the trend over weeks, not a single weigh-in.
How much should a Nederlandse Kooikerhondje 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 Nederlandse Kooikerhondjes grow differently?
The official adult range is the same for both sexes at 20-30 lb. Males may be slightly larger on average, but the overlap is wide enough that one chart serves both well.