Use this Irish Terrier puppy weight calculator to predict how big your puppy will get. Irish Terriers are a terrier breed that typically reach full size by around 12-15 months.
Enter your puppy's current weight and age to predict their adult size
Estimates based on breed growth curves. Individual dogs vary with genetics and nutrition — check with your vet for a personalized read.
A practical pick for medium-sized breeds.
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| Age | Weight |
|---|---|
| Birth | 1 lbs |
| 2 Months | 4 to 5 lbs |
| 3 Months | 6 to 8 lbs |
| 4 Months | 9 to 11 lbs |
| 5 Months | 11 to 14 lbs |
| 6 Months | 14 to 16 lbs |
| 7 Months | 16 to 19 lbs |
| 9 Months | 19 to 22 lbs |
| 10 Months | 21 to 24 lbs |
| 1 Year | 24 to 26 lbs |
| 1.5 Years | 25 to 27 lbs |
| 2 Years | 25 to 27 lbs |
Estimated from typical medium-breed growth curves and the Irish Terrier's adult weight range. Individual puppies vary — use the calculator above for a prediction based on your puppy's actual current weight.
New breed data, growth tips, and puppy-parenting insights, plus our free printable puppy growth tracker.
Generally a healthy breed; hyperkeratosis (a paw-pad thickening condition) has been documented in the breed.
A quality diet in measured portions; standard weight management applies.
The wiry coat needs regular brushing and periodic hand-stripping.
Bold and spirited — consistent, engaging training channels the breed's energy productively, and this terrier does well with an active family.
A bold, dashing Irish terrier historically used for hunting and as a wartime messenger dog.
Courageous and loyal, Irish Terriers are famously good with children and were a favorite family dog in their homeland.
