Irish Wolfhound Puppy Weight Calculator

Calculate the adult weight for your Irish Wolfhound. Just type your puppy’s current weight and age, and see how big your puppy gets.

Irish Wolfhound Breed Profile & Growth Guide

Breed Overview

The Irish Wolfhound is one of the tallest and most majestic dog breeds in the world, with origins dating back to ancient Ireland. Originally bred as a war dog and for hunting large game such as wolves and elk, this gentle giant is known for its calm demeanor, loyalty, and dignified presence. Despite their imposing size, Irish Wolfhounds are affectionate, quiet, and excellent with children and other pets.

These dogs are incredibly people-oriented and tend to form deep bonds with their families. Though they have a strong prey drive from their hunting heritage, their temperament is typically easygoing and serene.

Size Category: Giant
The Irish Wolfhound is a giant breed, with adult males standing 32–35 inches tall and weighing 140–180 lbs, while females usually stand 30–34 inches and weigh 115–140 lbs. Because of their rapid and extended growth period, tracking weight is crucial to avoid growth-related skeletal problems and ensure they mature into strong, healthy adults.

For more, visit the AKC Irish Wolfhound page.

Irish Wolfhound Growth Chart & Weight Ranges

Age	Male Weight (lbs)	Female Weight (lbs)
4 weeks	8 – 12	7 – 11
8 weeks	22 – 28	20 – 26
3 months	45 – 60	40 – 55
4 months	60 – 80	55 – 70
6 months	90 – 110	80 – 100
9 months	115 – 140	100 – 125
12 months	130 – 160	110 – 140
18 months	140 – 180	115 – 140 (full)
24 months	150 – 180 (full)	115 – 140 (full)

Note: Males are typically 15–30 lbs heavier than females and may appear taller and more muscular.

How Much Bigger Will My Irish Wolfhound Puppy Get?

Irish Wolfhounds have one of the longest growth periods among dog breeds. Their skeletal growth happens quickly, but they continue filling out well into their second year.

• 50% of adult weight by 4–5 months
• 75% by 7–8 months
• Full height by 12 months, but still gaining weight and muscle until 24 months

Rule of thumb:
Double your puppy’s weight at 16 weeks for a rough estimate of adult weight, though giant breeds like Irish Wolfhounds often surpass this due to their extended growth phase.

Exceptions:
This breed can appear lanky during adolescence and may not fill out proportionately until 18–24 months. Overfeeding during this time can cause orthopedic issues like pano (growing pains) or joint stress.

For more breed-specific care and health insights, visit the Irish Wolfhound Club of America.

Irish Wolfhound Growth Tips

Nutrition

• Feeding Schedule: 3 meals daily until 6 months, then 2 meals per day after.
• Feed a giant-breed puppy formula with controlled calcium and phosphorus levels to support bone health and slow, steady growth.
• Avoid supplements unless prescribed by your vet—excess calcium can damage growing bones.

Exercise

• Irish Wolfhound puppies need moderate, controlled exercise—short walks and gentle play.
• Avoid running, jumping, or roughhousing on hard surfaces until they are at least 18 months old to prevent joint injuries.
• Enrichment through training and exploration is highly recommended.

Health Watch

• Hip and elbow dysplasia: Common in giant breeds—regular vet checks and maintaining a lean weight are key.
• Osteosarcoma (bone cancer): Irish Wolfhounds are predisposed; maintaining good overall health may help reduce risk.
• Bloat (Gastric Dilatation-Volvulus): Feed smaller, more frequent meals; avoid vigorous exercise around feeding times.