How big does a American Water Spaniel get?

A full-grown American Water Spaniel is a medium dog, weighing about 25–45 lb as an adult.

Adult weight
25–45 lb
Also in kilograms
11.5–20.5 kg
Size class
Medium

As a medium breed, a American Water Spaniel reaches its adult weight earlier than a large dog — smaller breeds finish growing sooner (Hawthorne et al., 2004).

Weight varies within the American Water Spaniel 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, requête du 2026-07-22, licence CC0) and Body-Weight Changes during Growth in Puppies of Different Breeds (Hawthorne et al., Journal of Nutrition, 2004, vol. 134, p. 2027S). See the method.