Welsh Terrier
Small dog (5–10 kg), typically living 12–15 years.
Typical adult weight
Males: 9–10 kg
Females: 8–9 kg
Individual pets vary. Body condition matters more than the number on the scales.
At a glance
Typical lifespan
Median lifespan for a Welsh Terrier is around 13.3 years, based on an estimate built from this breed's size, type and published lifespan range. Try our dog lifespan calculator for a figure adjusted to your own dog.
Life with a Welsh Terrier
The Welsh Terrier is an active breed that needs plenty of exercise and mental stimulation to stay content. As a small dog (5–10 kg as an adult), it is quick to learn and usually responds very well to training, which matters most in the first year while good habits are being formed. It also can be quite vocal, especially if bored or under-exercised.
Coat care is a big part of day-to-day life with this breed: its coat needs frequent brushing, and many owners also book professional grooming, and it sheds lightly for most of the year. Around the home, the Welsh Terrier is usually good with children and tends to be patient and tolerant and can be selective about which other animals it gets on with, though every individual dog is different and early, positive socialisation makes a real difference.
Weather is worth planning for too – this breed manages moderate warmth reasonably well but still needs care on hot days. Whatever your plans for exercise, feeding or budgeting, the tools below are pre-loaded with typical figures for the Welsh Terrier so you can get a quick, personalised estimate.
Puppy growth chart
Estimated weight by age, based on an adult weight of around 9 kg (the midpoint of typical males and females) and a standard small-breed growth curve. Real puppies vary by ±15% or more.
| Age | % of adult weight | Expected weight |
|---|---|---|
| 12 weeks | 50% | 4.5 kg |
| 16 weeks | 60% | 5.4 kg |
| 26 weeks | 80% | 7.2 kg |
| 39 weeks | 95% | 8.5 kg |
| 52 weeks | 100% | 9 kg |
Feeding guide by weight
Rough daily amounts for a neutered adult Welsh Terrier of average activity, using the standard 70 × weight0.75 formula and a typical dry food energy density of 3600 kcal/kg. Always check the exact figure on your own food's packaging.
| Body weight | Daily calories | Roughly dry food |
|---|---|---|
| 8 kg | 533 kcal | 148 g |
| 9 kg | 582 kcal | 162 g |
| 10 kg | 630 kcal | 175 g |
For a figure tailored to your dog's age, activity and neuter status, use the dog food calculator.
Daily exercise needs
As a working, sporting and herding breed-type dog, the Welsh Terrier typically needs about 90–120 minutes of exercise a day, split across one or two walks plus some off-lead time or play where possible.
Puppies, seniors and dogs recovering from illness need much less – see how much exercise does my dog need for a plan by age and health.
Estimated UK costs
Ongoing costs (food, insurance, routine vet care, flea/worm treatment, grooming and extras) for a Welsh Terrier typically run to around £81–£110 a month, or roughly £12,150–£16,500 over an average 12.5-year lifetime, not including one-off costs like purchase price, neutering or equipment.
These figures are UK averages and will vary by region and lifestyle. See our cost-of-ownership guide for a full breakdown you can adjust yourself.
Health conditions to be aware of
Like all breeds, the Welsh Terrier has its own set of conditions vets keep an eye out for. Knowing about them ahead of time means you can ask the right questions, consider health screening, and choose insurance cover that suits.
- Glaucoma
- Allergies
A breed being prone to a condition does not mean your pet will get it. Ask your vet about screening and insurance.
Calculators for your Welsh Terrier
Guides to read next
Estimates only – not a substitute for advice from your vet.
Last reviewed: 22 September 2026