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Giant breed

Irish Wolfhound Growth Chart

Male adult weight120–150 lb54.4–68 kg
Female adult weight105–135 lb47.6–61.2 kg

Irish Wolfhounds are the tallest of all dog breeds — gentle giants with a rough coat. Adults typically weigh 105–150 lb, with males heavier than females. Most reach adult weight around 24 months.

View weight chart (lb & kg)

Calculate Your Irish Wolfhound Puppy's Adult Weight

Enter your Irish Wolfhound puppy's age and current weight for an estimated adult weight range.

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Irish Wolfhound weight by age

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

Most Irish Wolfhound puppies approach adult weight around 24 months, although individuals may finish earlier or later.

Weight unit
Expected Irish Wolfhound puppy weight at key ages in lb or kg
AgeTypical male rangeTypical female range
2 months (8 weeks)12.7–35.4 lb5.8–16.1 kg11.1–31.9 lb5–14.5 kg
3 months (12 weeks)18.7–42.9 lb8.5–19.5 kg16.4–38.6 lb7.4–17.5 kg
4 months (16 weeks)24.1–49.7 lb10.9–22.5 kg21.1–44.7 lb9.6–20.3 kg
5 months (20 weeks)29.2–56 lb13.2–25.4 kg25.5–50.4 lb11.6–22.9 kg
6 months (24 weeks)34–62 lb15.4–28.1 kg29.7–55.8 lb13.5–25.3 kg
7 months (32 weeks)42.8–73.1 lb19.4–33.2 kg37.5–65.7 lb17–29.8 kg
9 months (40 weeks)51.2–83.6 lb23.2–37.9 kg44.8–75.2 lb20.3–34.1 kg
1 year (52 weeks)63.1–98.4 lb28.6–44.6 kg55.2–88.6 lb25–40.2 kg
18 months (78 weeks)86.8–128 lb39.4–58.1 kg75.9–115.2 lb34.4–52.3 kg
24 months (104 weeks)112.2–150 lb50.9–68 kg98.2–135 lb44.5–61.2 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

Irish Wolfhound Growth Stages

Understanding the typical growth stages helps you know what to expect as your Irish Wolfhound 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

3–8 months

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

Adolescent

8–18 months

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

Young Adult

18–24 months

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

Adult

24+ months

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

Irish Wolfhound FAQ

How much will my Irish Wolfhound puppy weigh as an adult?

Most adult Irish Wolfhounds typically weigh between 105 and 150 lb. Males often reach 120–150 lb, while females usually finish at 105–135 lb.

At what age is an Irish Wolfhound fully grown?

Irish Wolfhounds usually keep growing until about 24 months. They shoot up in height alarmingly fast as puppies, then fill out slowly.

How accurate is an Irish Wolfhound puppy weight chart?

Charts show typical trends, not guarantees. Sighthound puppies look thin even when growing perfectly — judge by trend and vet checks, not by eye.

My Irish Wolfhound puppy looks skinny — is that normal?

Usually yes. Wolfhound puppies are leggy and lean by design during growth. Visible ribs on an energetic, well-fed puppy are typically normal for the breed. Confirm with your vet.

How much should I feed my Irish Wolfhound puppy?

Feed a giant-breed puppy formula in measured meals. Do not try to add bulk — lean growth is correct and safer for joints. Ask your vet about portions.