Use this Irish Wolfhound puppy weight calculator to predict how big your puppy will get. Irish Wolfhounds are a giant sighthound breed that keeps growing until around 18-24 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.

Slows fast eaters, can aid digestion, holds 4 cups dry or wet food — sized for giant breeds.
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| Age | Weight |
|---|---|
| Birth | 2 to 4 lbs |
| 2 Months | 8 to 12 lbs |
| 3 Months | 16 to 24 lbs |
| 4 Months | 26 to 36 lbs |
| 5 Months | 37 to 48 lbs |
| 6 Months | 47 to 60 lbs |
| 7 Months | 58 to 72 lbs |
| 9 Months | 68 to 84 lbs |
| 10 Months | 79 to 96 lbs |
| 1 Year | 89 to 108 lbs |
| 1.5 Years | 100 to 120 lbs |
| 2 Years | 105 to 120 lbs |
Estimated from typical giant-breed growth curves and the Irish Wolfhound'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.
As a giant, deep-chested breed, Irish Wolfhounds carry meaningful bloat risk. They're also prone to cardiomyopathy and osteosarcoma (bone cancer), and — like most giant breeds — have a notably short average lifespan, often just 6-8 years.
A large-breed puppy formula through the growth period; adults benefit from meals split to help reduce bloat risk.
The rough, wiry coat needs regular brushing to prevent matting.
Gentle and trainable, though early obedience work matters given the breed's eventual giant size — this breed needs only moderate exercise despite its sighthound heritage.
The tallest of all AKC breeds, historically bred to hunt wolves and elk in Ireland.
Gentle and dignified despite its massive size, the Irish Wolfhound is famously calm and good-natured with family.