Cavalier vs. King Charles Spaniel
People often confuse a Cavalier King Charles Spaniel (CKCS) with the similar toy breed known as the King Charles Spaniel (KCS) — also known as the English Toy Spaniel. While both breeds originated in England and were bred as companions for royalty, they are notably different in their appearance and personality.
Key Differences at a Glance
- Size: CKCS is slightly larger — 10–12" and 13–18 lbs vs. KCS at 9–10" and 12–13 lbs (AKC standards)
- Head shape: CKCS has a flatter skull; KCS has a more rounded, domed head with a slight underbite
- Nose: CKCS has a longer nose than the shorter-faced KCS
- Tail: KCS tails are commonly docked; CKCS docking is optional
- Temperament: KCS tends to be more reserved and independent; CKCS is typically more outgoing and affectionate
One primary difference is size. The CKCS is slightly bigger than the KCS. The average height of the CKCS is 10–12 inches and the average weight is 13–18 pounds (AKC standard), while the average height and weight of the KCS are 9–10 inches and 12–13 pounds respectively.
Another primary difference is head appearance. The CKCS has a flatter skull when compared to the more rounded, domed-shaped head of the KCS, resulting in a slight underbite that gives the breed their distinctive appearance. The CKCS also has a longer nose than the KCS.
Both breeds come in the same 4 color patterns: Blenheim (chestnut and white), Tricolor (black, white and tan), Black and Tan (black with tan markings), and Ruby (solid mahogany red). Both breeds are known for being gentle, affectionate, and loyal companions. The KCS tends to be more reserved and independent than the CKCS. Both breeds are generally good with children and other animals, and they are known for being quiet dogs that rarely bark excessively.
Both breeds can suffer from similar health issues including heart disease, eye problems, and neurological conditions — making careful health testing of breeding stock essential for both.
