PetMeasure

Portuguese Cattle Dog Weight & Size

Adult Portuguese Cattle Dog
Photo — No machine-readable author provided. Deke~commonswiki assumed (based on copyr…, Public domain · Wikimedia Commons

How big does a Portuguese Cattle Dog get?

A full-grown Portuguese Cattle Dog is a large dog, weighing about 55–88 lb as an adult.

Adult weight
55–88 lb
Also in kilograms
25–40 kg
Size class
Large

Portuguese Cattle Dog Size

As a large breed, a Portuguese Cattle Dog keeps growing for longer than a small dog — larger breeds reach their adult weight months later (Hawthorne et al., 2004). Expect steady growth well past the first year.

Portuguese Cattle Dog Growth Chart

What a Portuguese Cattle Dog puppy weighs week by week, from the growth curve FEDIAF publishes (Nutritional Guidelines 2025, Table VII-8a) for a dog whose expected adult weight is 32.5 kg. It is an average, not a target, and it is only valid from 8 weeks to one year — FEDIAF notes that growth patterns show a certain individual variability. Read a row as the middle of a spread.

AgeWeight% of adult weight
8 weeks15 lb (6.7 kg)21%
10 weeks21 lb (9.4 kg)29%
12 weeks26 lb (11.6 kg)36%
14 weeks30 lb (13.4 kg)41%
16 weeks33 lb (15.0 kg)46%
18 weeks36 lb (16.5 kg)51%
20 weeks39 lb (17.7 kg)55%
24 weeks44 lb (19.9 kg)61%
28 weeks48 lb (21.8 kg)67%
32 weeks52 lb (23.4 kg)72%
36 weeks55 lb (24.8 kg)76%
40 weeks57 lb (26.1 kg)80%
44 weeks60 lb (27.2 kg)84%
48 weeks62 lb (28.2 kg)87%
52 weeks64 lb (29.2 kg)90%

Common questions

How much does a full-grown Portuguese Cattle Dog weigh?

A Portuguese Cattle Dog weighs 55–88 lb (25–40 kg) as an adult. That range is the mass Wikidata publishes for the breed under a CC0 license, re-checked here every week — it is a typical weight across many adult dogs, not a target for one dog.

Is a Portuguese Cattle Dog a large dog?

Yes — a Portuguese Cattle Dog counts as a large breed, going by the middle of its adult weight range (25–40 kg). The cut-offs between small, medium, large and giant are a common veterinary convention rather than one official standard, so a breed near a boundary can be described either way elsewhere.

When does a Portuguese Cattle Dog stop growing?

Later than a small dog. Hawthorne et al. (2004) measured that larger breeds keep gaining weight for longer, so a Portuguese Cattle Dog is likely to fill out well past its first birthday. We don't publish a month-by-month figure, because no source gives one breed by breed — and an invented number would be worse than none.

Why is there a range instead of one weight?

Because the source publishes a range. Within any breed, weight varies with sex, genetics, build and health, and a mixed-breed dog usually falls between its parents' breeds. Narrowing 55–88 lb down to a single number would look more precise while being less true.

Breeds of a similar size

Every dog calculator

Weight varies within the Portuguese Cattle Dog by sex, genetics and health, and mixed-breed dogs fall between their parents. This is a typical range, not a guarantee.

Verified on . Based on Wikidata — dog breed mass (property P2067) (Wikimedia Foundation, query run 2026-07-22, CC0 license), Body-Weight Changes during Growth in Puppies of Different Breeds (Hawthorne et al., Journal of Nutrition, 2004, vol. 134, p. 2027S) and Nutritional Guidelines for Complete and Complementary Pet Food for Cats and Dogs (FEDIAF (European Pet Food Industry Federation), 2025 edition (growth curves Table VII-8a, growth energy VII-8b and VII-10)). See the method.