Cavalier King Charles Spaniel vs Rat Terrier

Toy · Small vs Terrier · Small

Quick take
  • Rat Terrier is the larger breed at 10–25 lbs (males) vs 13–18 lbs for the Cavalier King Charles Spaniel.
  • The Rat Terrier typically lives longer (12–18 years).
  • The Rat Terrier has higher daily energy needs.
  • The Rat Terrier sheds less.

Side-by-side traits

TraitCavalier King Charles SpanielRat Terrier
Group
ToyTerrier
Size
SmallSmall
Origin
EnglandUSA
Height (male)
12–13"10–18"
Height (female)
12–13"10–18"
Weight (male)
13–18 lbs10–25 lbs
Weight (female)
13–18 lbs10–25 lbs
Lifespan
Average expected lifespan.
12–15 years12–18 years
Energy level
Daily activity needs.
Moderate (3/5)Very High (5/5)
Trainability
How quickly the breed learns commands.
High (4/5)High (4/5)
Intelligence
Problem-solving ability.
High (4/5)Very High (5/5)
Exercise needs
Daily physical activity required.
Moderate (3/5)High (4/5)
Shedding
Lower = less hair around your home.
Moderate (3/5)Low (2/5)
Grooming effort
Brushing, bathing, professional grooming.
Moderate (3/5)Very Low (1/5)
Drooling
Lower = drier face and furniture.
Very Low (1/5)Very Low (1/5)
Barking
How vocal the breed is.
Low (2/5)Moderate (3/5)
Good with kids
Very High (5/5)High (4/5)
Good with other dogs
Very High (5/5)High (4/5)
Good with strangers
Very High (5/5)Moderate (3/5)
Protectiveness
Watchdog tendencies.
Very Low (1/5)Moderate (3/5)
Adaptability
Apartment / new environment tolerance.
Very High (5/5)High (4/5)
Coat length
mediumshort
Hypoallergenic
Lower-shedding, less dander.
NoNo
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About the Cavalier King Charles Spaniel

The Cavalier King Charles Spaniel is an affectionate, gentle, graceful spaniel — bred as a lapdog companion to British royalty. Originally from England, this small toy breed typically weighs 13–18 lbs and lives 12–15 years. Breeders describe them as affectionate, gentle, graceful.

About the Rat Terrier

The Rat Terrier is a friendly, lovable, alert American farm terrier — President Roosevelt's favorite, born to clear vermin. Originally from USA, this small terrier breed typically weighs 10–25 lbs and lives 12–18 years. Breeders describe them as friendly, lovable, alert.

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Cavalier King Charles Spaniel health

Common health concerns reported in this breed:

  • Mitral valve disease
  • Syringomyelia
  • Hip dysplasia
  • Eye problems

Rat Terrier health

Common health concerns reported in this breed:

  • Patellar luxation
  • Hip dysplasia
  • Heart issues