Irish Wolfhound weight chart by age
In a published growth study, adult Irish Wolfhound dogs averaged about 116 lb (52.4 kg). Puppies reached 99 percent of that weight at around 49 weeks, which is about 11 months. Use the chart to see what is typical at each age, or enter your puppy's weight for an estimate of the adult size.
Your puppy is at about 38% of its adult weight.
Irish Wolfhound puppy weight by age
| Age | Pounds | Kilograms | Of adult weight |
|---|---|---|---|
| 8 weeks | 17.9 | 8.1 | 15% |
| 12 weeks | 29.1 | 13.2 | 25% |
| 16 weeks | 44.3 | 20.1 | 38% |
| 20 weeks | 61.7 | 28.0 | 53% |
| 24 weeks | 78.5 | 35.6 | 68% |
| 32 weeks | 101.4 | 46.0 | 88% |
| 40 weeks | 111.0 | 50.3 | 96% |
| 1 year | 114.8 | 52.1 | 99% |
| 15 months | 115.4 | 52.4 | 100% |
| 18 months | 115.5 | 52.4 | 100% |
| Adult average | 115.5 | 52.4 | 100% |
Values are calculated from the growth curve fitted to the Irish Wolfhound puppies in the study. Males and females were not reported separately here, and individual dogs vary, so treat the numbers as a typical pattern, not a standard.
Irish Wolfhound growth chart
The dot marks one year. After that, weight changes slowly.
How fast does a Irish Wolfhound grow?
This breed is in the giant group in our puppy size calculator. Growth was half done at about 19 weeks, which is when the curve is steepest. A Irish Wolfhound is usually close to its adult weight by 11 months, although the body can keep filling out afterward. For how much to feed along the way, see the puppy feeding chart.
Questions
How much should a Irish Wolfhound puppy weigh at 8 weeks?
In the study a Irish Wolfhound weighed about 17.9 lb (8.1 kg) at 8 weeks.
How much should a Irish Wolfhound puppy weigh at 16 weeks?
About 44.3 lb (20.1 kg), which is roughly 38 percent of the adult weight.
How much does an adult Irish Wolfhound weigh?
The adult dogs in the study averaged about 116 lb (52.4 kg). Breed standards and individual dogs differ.
When is a Irish Wolfhound fully grown?
Around 49 weeks (11 months) for weight, according to the growth curve.
Is my Irish Wolfhound overweight?
Weight alone cannot say. Use the body condition check to look at ribs and waist.
Other breeds
Papillon, Cocker Spaniel, Miniature Schnauzer, Cairn Terrier, Beagle, English Springer Spaniel, Labrador Retriever, English Mastiff, St. Bernard, Great Dane, Newfoundland. See also the dog weight chart for all breeds side by side.
Sources
- Hawthorne A.J. et al., "Body-weight changes during growth in puppies of different breeds", Journal of Nutrition, 2004.
Last reviewed 2026-10-26. This page is general information and not veterinary advice.