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Bearded Collie Growth Chart
The Bearded Collie — the 'Beardie' — is a shaggy Scottish herding dog with a long, flowing coat, bright expression, and famously bouncy working style. Hardy and cheerful, Beardies are athletic medium dogs built for long days in the hills. Most reach an adult weight of 45-55 lb between 12 and 15 months.
View weight chart (lb & kg)Calculate Your Bearded Collie Puppy's Adult Weight
Enter your Bearded Collie puppy's age and current weight for an estimated adult weight range.
Bearded Collie weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Bearded Collie 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
Bearded Collie Growth Stages
Understanding the typical growth stages helps you know what to expect as your Bearded Collie 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.
Bearded Collie FAQ
How much will my Bearded Collie puppy weigh as an adult?
Adult Bearded Collies typically weigh between 45 and 55 lb. The breed standard does not split this range by sex, so both males and females fall in the same 45-55 lb band — the long coat can make a Beardie look bigger than it is, so trust the scale.
At what age is a Bearded Collie fully grown?
Most reach adult weight between 12 and 15 months. They often grow tall first and look gangly through adolescence before filling out, so a lanky young Beardie is usually just on schedule.
How accurate is a Bearded Collie puppy weight chart?
It is a good guide, and the 45-55 lb adult band is relatively tight. Because the coat hides the body's changing shape, weigh regularly rather than judging growth by looks — a fluffy puppy can be lean underneath.
How much should a Bearded Collie 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 Bearded Collies grow differently?
The official adult range is the same for both sexes at 45-55 lb. The difference between males and females is small, so one growth chart works for both.