Giant

Irish Wolfhound Full Grown: Size & Weight

A full-grown Irish Wolfhound weighs about 105–180 lb and stands roughly 30–34 in tall at the shoulder.

Adult Irish Wolfhound

Have a Irish Wolfhound puppy? Estimate its adult size

Built on the giant growth curve, clamped to the breed's range.

Irish Wolfhound growth chart

How a giant-size dog like the Irish Wolfhound fills out over its first months. Switch between percent of adult weight and pounds, and enter a weigh-in above to plot your puppy.

0% 25% 50% 75% 100% 0 3 6 9 12 15 18 Age (months)
  • Irish Wolfhound

Median curves computed from ~89,000 healthy dogs aged 2–24 months in the open Salt et al. 2017 dataset (PLOS ONE, CC BY 4.0), grouped into PuppySize's five size classes.

Age % of adult weight Estimated weight
2 months 14.5% 15–26 lb
3 months 26.5% 28–48 lb
4 months 39.1% 41–70 lb
5 months 50.5% 53–91 lb
6 months 61.3% 64–110 lb
7 months 71.7% 75–129 lb
8 months 79.4% 83–143 lb
9 months 84.6% 89–152 lb
10 months 87.9% 92–158 lb
11 months 91.2% 96–164 lb
12 months 93.9% 99–169 lb
13 months 95.7% 100–172 lb
14 months 97.2% 102–175 lb
15 months 97.2% 102–175 lb
16 months 99.4% 104–179 lb
17 months 99.4% 104–179 lb
18 months 100% 105–180 lb

How confident is this estimate? Based on an official breed standard or cross-checked veterinary/registry sources.

About this breed's data: AKC standard gives minimums: males 32 in / 120 lb, females 30 in / 105 lb. Typical adults are taller and heavier (often 32-35 in, 115-180 lb).

Sources: American Kennel Club, Salt et al. 2017 (PLOS ONE) growth data.

How we calculate this

Irish Wolfhound questions

How big does an Irish Wolfhound get?
A full-grown Irish Wolfhound typically weighs 105–180 lb and stands 30–34 in tall. Use the calculator above with your puppy's current age and weight for a personalized estimate.
When does an Irish Wolfhound stop growing?
Most Irish Wolfhounds reach their full adult size around 18 months, in line with giant-size dogs. They do most of their growing in the first 6 months, then fill out more slowly.
Are these Irish Wolfhound size estimates accurate?
Based on an official breed standard or cross-checked veterinary/registry sources. Estimates are typically within 10–20% for purebreds; designer and mixed breeds vary more. We always show a range and clamp it to this breed's known adult size.

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