Welsh Terrier Weight & Growth Chart

Complete weight guide with growth charts for male and female Welsh Terriers from puppy to adult.

Male Adult Weight
20–22 lbs
Female Adult Weight
17–19 lbs

Welsh Terrier Weight Overview

A fully grown Welsh Terrier weighs between 20 and 22 pounds. Males range 20–22 lbs; females 17–19 lbs.

Medium-sized at 20 to 22 pounds and approximately 15 inches tall, they should appear square and balanced with good bone and muscle..

Growth Chart

When Does a Welsh Terrier Stop Growing?

Expect your Welsh Terrier to reach adult height of 15–15 inches by 12–15 months. Full body maturity—including muscle development toward the 20–22 lb target—may continue until 14–18 months.

Growth is influenced by genetics, nutrition quality, and spay/neuter timing. Primary lens luxation DNA testing is recommended for all breeding dogs, as this painful eye condition can be prevented through responsible genetic screening..

Is My Welsh Terrier Overweight?

To determine if your Welsh Terrier is at a healthy weight (20–22 lbs target):

  • Rib test: You should be able to feel the ribs without pressing hard, with a thin layer of fat covering them
  • Waist check: Viewed from above, there should be a visible waist behind the ribs
  • Tuck-up: From the side, the abdomen should tuck up behind the rib cage

Their dense, hard, wiry outer coat with soft undercoat coat can mask weight gain, so hands-on assessment is essential. If your Welsh Terrier is overweight, work with your veterinarian to develop a safe weight loss plan. Even a 10% reduction can reduce the risk of Lens Luxation and other conditions.

Feeding Recommendation

Daily food for an adult Welsh Terrier: 0.5–0.4 cups of high-quality dry food in two meals, budgeting $41–65/month. Puppies growing toward 20–22 lbs need three to four daily feedings until around six months old. Primary lens luxation DNA testing is recommended for all breeding dogs, as this painful eye condition can be prevented through responsible genetic screening.—treats count toward daily calorie intake.

Weight by Age Table

AgeMale (lbs)Female (lbs)
3 months 5.1–5.9 4.3–5.0
6 months 11.2–13.0 9.5–11.1
9 months 16.3–18.9 13.8–16.1
12 months 20.4–23.6 17.2–20.2

Frequently Asked Questions

Males: 20–22 lbs. Females: 17–19 lbs. Medium-sized at 20 to 22 pounds and approximately 15 inches tall, they should appear square and balanced with good bone and muscle.. Consult your vet for a personalized assessment.
Height plateaus around 12–15 months for the Welsh Terrier, with males reaching 22 lbs and females 19 lbs at maturity. As a terrier breed originally from Wales, they were bred for a compact, sturdy build.
For a Welsh Terrier at healthy weight (20–22 lbs), you should feel ribs without pressing hard, see a defined waist from above, and notice an abdominal tuck from the side. Even modest excess weight stresses this small-sized breed's frame and can worsen conditions like Lens Luxation.
Feeding amounts depend on age, current weight, and the Welsh Terrier's expected adult size of 20–22 lbs. Puppies under 6 months need 3–4 meals daily; older puppies eat twice daily. A high-quality puppy food formulated for small breeds provides the right nutrient balance. Primary lens luxation DNA testing is recommended for all breeding dogs, as this painful eye condition can be prevented through responsible genetic screening..
Poor weight gain in a Welsh Terrier puppy warrants a vet visit. For a breed that should reach 20–22 lbs at maturity, slow growth can signal parasites (very common in puppies), underfeeding, food intolerance, or illness. Given this breed's dense, hard, wiry outer coat with soft undercoat coat, it can be hard to visually assess body condition–weigh your puppy weekly. Your vet will likely run a fecal test and blood work.