View all Medium breed growth charts
Australian Kelpie Growth Chart
The Australian Kelpie is a legendary Australian sheep herder, bred to work vast stations with boundless stamina and heat tolerance. Tireless, smart, and intense, Kelpies are medium-sized working dogs built for all-day running. Most reach an adult weight of 35-50 lb between 12 and 15 months.
View weight chart (lb & kg)Calculate Your Australian Kelpie Puppy's Adult Weight
Enter your Australian Kelpie puppy's age and current weight for an estimated adult weight range.
Australian Kelpie weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Australian Kelpie 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
Australian Kelpie Growth Stages
Understanding the typical growth stages helps you know what to expect as your Australian Kelpie 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.
Australian Kelpie FAQ
How much will my Australian Kelpie puppy weigh as an adult?
Adult Australian Kelpies typically weigh between 35 and 50 lb. The breed standard does not split this range by sex, so males and females share the same 35-50 lb band — males tend to sit at the heavier end.
At what age is an Australian Kelpie fully grown?
Most reach adult weight between 12 and 15 months. High-energy herders build stamina before bulk, so a lean, tireless adolescent is usually still filling out.
How accurate is an Australian Kelpie puppy weight chart?
It is a good guide. Kelpies are active, high-energy dogs that burn a lot of calories — an adolescent that runs hard all day may track the low end of the band without being underweight.
How much should an Australian Kelpie 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 Australian Kelpies grow differently?
The official adult range is the same for both sexes at 35-50 lb. Males may average a few pounds heavier, but the overlap is wide enough that one chart serves both.