Irish Terrier weight by age
Typical weight by age for a Irish Terrier with an adult weight of about 27 lb (male) or 25 lb (female). The range shows where most puppies fall.
| Age | Male | Female |
|---|---|---|
| 2 months | 6.3 lbrange 4.2–8.6 lb | 5.9 lbrange 4.0–8.1 lb |
| 3 months | 9.7 lbrange 6.9–13 lb | 9.1 lbrange 6.4–12 lb |
| 4 months | 13 lbrange 10–17 lb | 12 lbrange 9.5–16 lb |
| 5 months | 17 lbrange 14–21 lb | 16 lbrange 13–19 lb |
| 6 months | 19 lbrange 16–23 lb | 18 lbrange 15–22 lb |
| 8 months | 23 lbrange 19–26 lb | 21 lbrange 18–24 lb |
| 10 months | 24 lbrange 21–27 lb | 23 lbrange 19–25 lb |
| 12 months | 25 lbrange 22–28 lb | 24 lbrange 20–26 lb |
Divide pounds by 2.2 for kilograms.
Adult weight
AKC breed page: 27 pounds (male), 25 pounds (female). The calculator uses about 27 lb for males and 25 lb for females as the typical adult weight.
Common questions
How much should a Irish Terrier puppy weigh at 3 months?
A typical male Irish Terrier weighs about 9.7 lb at 3 months (most between 6.9 and 13 lb). A typical female weighs about 9.1 lb (most between 6.4 and 12 lb).
How much should a Irish Terrier puppy weigh at 6 months?
A typical male Irish Terrier weighs about 19 lb at 6 months (most between 16 and 23 lb). A typical female weighs about 18 lb (most between 15 and 22 lb).
How much does a Irish Terrier weigh at 1 year?
A typical male Irish Terrier weighs about 25 lb at 12 months (most between 22 and 28 lb). A typical female weighs about 24 lb (most between 20 and 26 lb).
When does a Irish Terrier stop gaining weight?
The typical Irish Terrier puppy reaches about 90% of its adult weight around 10 months. The last few percent come on slowly after that. Large and giant breeds fill out for longer than small ones.
How accurate is the Irish Terrier weight calculator?
Across our test dogs the typical miss was about 11% of adult weight, smaller for older puppies. Your puppy can land outside the range. See the methods page.
Other breeds
Weight standard: AKC breed page. Growth curves: our analysis of open data from Salt et al. (2017), CC BY 4.0. An estimate, not veterinary advice. Methods.