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Glen of Imaal Terrier Growth Chart
The Glen of Imaal Terrier is a sturdy Irish terrier with a long body, short bowed legs, and a no-nonsense working attitude — bred in the Wicklow mountains to hunt badger and turn spits in kitchens. Strong, silent, and less scrappy than many terriers. The breed standard gives an adult weight of about 35 lb for males (no female figure is published), with most fully grown between 12 and 14 months.
View weight chart (lb & kg)Calculate Your Glen of Imaal Terrier Puppy's Adult Weight
Enter your Glen of Imaal Terrier puppy's age and current weight for an estimated adult weight range.
Glen of Imaal Terrier weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Glen of Imaal Terrier 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
Glen of Imaal Terrier Growth Stages
Understanding the typical growth stages helps you know what to expect as your Glen of Imaal Terrier 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.
Glen of Imaal Terrier FAQ
How much will my Glen of Imaal Terrier puppy weigh as an adult?
Adult Glen of Imaal Terriers typically weigh about 35 lb. The breed standard publishes only the male figure, so we show the same target for both sexes — treat it as a guide, not a fixed endpoint.
At what age is a Glen of Imaal Terrier fully grown?
Most reach adult weight between 12 and 14 months. They are slow-maturing terriers that keep filling out through the second year, so don't expect the finished look at twelve months.
How accurate is a Glen of Imaal Terrier puppy weight chart?
It is a reasonable guide, but the 35 lb figure is a single breed-standard target rather than a range — sturdy individuals can sit a few pounds either side. Track your own puppy's trend over several weeks rather than comparing to a single week's number.
How much should a Glen of Imaal Terrier 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 Glen of Imaal Terriers grow differently?
The breed standard only gives the male figure of about 35 lb, so we use the same 35 lb target for both sexes on this page. Females often run a little lighter in practice, but there is no official published split.