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Medium breed

Kerry Blue Terrier Growth Chart

Male adult weight33–40 lb15–18.1 kg
Female adult weight33–40 lb15–18.1 kg

The Kerry Blue Terrier is a stylish Irish farm dog with a soft, wavy blue-gray coat and a spirited, alert temperament. Bred for all-around farm work in County Kerry, Kerries are athletic and people-focused. The AKC standard only gives weight figures for males — 33-40 lb — describing females as proportionately less with no official number, so the calculator uses the same 33-40 lb range for both sexes. Most reach adult weight between 12 and 15 months.

View weight chart (lb & kg)

Calculate Your Kerry Blue Terrier Puppy's Adult Weight

Enter your Kerry Blue Terrier puppy's age and current weight for an estimated adult weight range.

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Kerry Blue Terrier weight by age

Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.

Most Kerry Blue Terrier puppies approach adult weight around 14 months, although individuals may finish earlier or later.

Weight unit
Expected Kerry Blue Terrier puppy weight at key ages in lb or kg
AgeTypical male rangeTypical female range
2 months (8 weeks)5.1–11.4 lb2.3–5.2 kg5.1–11.4 lb2.3–5.2 kg
3 months (12 weeks)7.7–14.6 lb3.5–6.6 kg7.7–14.6 lb3.5–6.6 kg
4 months (16 weeks)10–17.4 lb4.5–7.9 kg10–17.4 lb4.5–7.9 kg
5 months (20 weeks)12.2–20 lb5.5–9.1 kg12.2–20 lb5.5–9.1 kg
6 months (24 weeks)14.2–22.4 lb6.4–10.2 kg14.2–22.4 lb6.4–10.2 kg
7 months (32 weeks)18–27 lb8.2–12.2 kg18–27 lb8.2–12.2 kg
9 months (40 weeks)21.6–31.4 lb9.8–14.2 kg21.6–31.4 lb9.8–14.2 kg
1 year (52 weeks)26.7–37.5 lb12.1–17 kg26.7–37.5 lb12.1–17 kg
18 months (78 weeks)30.3–40 lb13.7–18.1 kg30.3–40 lb13.7–18.1 kg

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

Kerry Blue Terrier Growth Stages

Understanding the typical growth stages helps you know what to expect as your Kerry Blue Terrier puppy grows.

Neonatal

0–2 weeks

Puppies are born with eyes and ears closed, relying entirely on their mother. Rapid weight gain occurs during this period.

Socialization

3–12 weeks

Eyes and ears open. Puppies begin to explore, play, and learn social behaviors. This is a critical period for development.

Juvenile

3–6 months

Rapid growth continues. Puppies become more independent, start teething, and develop coordination.

Adolescent

6–12 months

Growth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.

Young Adult

12–15 months

Growth is nearly complete. Your puppy is filling out and approaching adult proportions.

Adult

15+ months

Your puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.

Kerry Blue Terrier FAQ

How much will my Kerry Blue Terrier puppy weigh as an adult?

The standard gives 33-40 lb for males; females are described as proportionately less but have no official number, so the calculator uses the same 33-40 lb range for both sexes. Expect females to land toward the lighter end.

At what age is a Kerry Blue Terrier fully grown?

Most reach adult weight between 12 and 15 months. They tend to grow up fast in the first year and then add muscle and definition, so a slim adolescent that still looks unfinished is usually right on schedule.

How accurate is a Kerry Blue Terrier puppy weight chart?

It is a good guide, but this athletic breed can look lighter than it weighs — dense muscle reads heavy on the scale. Weigh on the same scale regularly and follow the trend over weeks rather than judging by looks.

How much should a Kerry Blue 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 Kerry Blue Terriers grow differently?

The standard only publishes weight figures for males (33-40 lb) and describes females as proportionately less, with no number. Our chart applies the same 33-40 lb range to both sexes, so the table serves both — females usually finish toward the lighter end.