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Medium breed

Icelandic Sheepdog Growth Chart

Male adult weight25–30 lb11.3–13.6 kg
Female adult weight25–30 lb11.3–13.6 kg

The Icelandic Sheepdog is Iceland's only native dog breed, a hardy little spitz herder shaped by a thousand years of working sheep in harsh Nordic conditions. Sturdy, cheerful, and tireless, these dogs are compact but substantial for their height. Most reach an adult weight of 25-30 lb between 12 and 15 months.

View weight chart (lb & kg)

Calculate Your Icelandic Sheepdog Puppy's Adult Weight

Enter your Icelandic Sheepdog puppy's age and current weight for an estimated adult weight range.

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Icelandic Sheepdog weight by age

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

Most Icelandic Sheepdog puppies approach adult weight around 14 months, although individuals may finish earlier or later.

Weight unit
Expected Icelandic Sheepdog puppy weight at key ages in lb or kg
AgeTypical male rangeTypical female range
2 months (8 weeks)3.9–8.5 lb1.8–3.9 kg3.9–8.5 lb1.8–3.9 kg
3 months (12 weeks)5.9–10.9 lb2.7–4.9 kg5.9–10.9 lb2.7–4.9 kg
4 months (16 weeks)7.6–13 lb3.4–5.9 kg7.6–13 lb3.4–5.9 kg
5 months (20 weeks)9.2–15 lb4.2–6.8 kg9.2–15 lb4.2–6.8 kg
6 months (24 weeks)10.8–16.8 lb4.9–7.6 kg10.8–16.8 lb4.9–7.6 kg
7 months (32 weeks)13.7–20.3 lb6.2–9.2 kg13.7–20.3 lb6.2–9.2 kg
9 months (40 weeks)16.4–23.5 lb7.4–10.7 kg16.4–23.5 lb7.4–10.7 kg
1 year (52 weeks)20.2–28.1 lb9.2–12.7 kg20.2–28.1 lb9.2–12.7 kg
18 months (78 weeks)22.9–30 lb10.4–13.6 kg22.9–30 lb10.4–13.6 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

Icelandic Sheepdog Growth Stages

Understanding the typical growth stages helps you know what to expect as your Icelandic Sheepdog 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.

Icelandic Sheepdog FAQ

How much will my Icelandic Sheepdog puppy weigh as an adult?

Adult Icelandic Sheepdogs typically weigh between 25 and 30 lb — one of the narrower adult ranges on the chart. The breed standard does not split this range by sex, so both males and females fall in the same 25-30 lb band.

At what age is an Icelandic Sheepdog 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 an Icelandic Sheepdog puppy weight chart?

It is a good guide, and the narrow 25-30 lb adult band makes the target unusually precise. Weigh on the same scale regularly and compare against the trend over weeks, not a single weigh-in.

How much should an Icelandic Sheepdog 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 Icelandic Sheepdogs grow differently?

The official adult range is the same for both sexes at 25-30 lb, and the difference is small. One growth chart serves both well.