Cavalier King Charles Spaniel Full Grown: Size & Weight
A full-grown Cavalier King Charles Spaniel weighs about 13–18 lb and stands roughly 12–13 in tall at the shoulder.
Have a Cavalier King Charles Spaniel puppy? Estimate its adult size
Built on the small growth curve, clamped to the breed's range.
Cavalier King Charles Spaniel growth chart
How a small-size dog like the Cavalier King Charles Spaniel fills out over its first months. Switch between percent of adult weight and pounds, and enter a weigh-in above to plot your puppy.
- Cavalier King Charles Spaniel
- Your puppy
Median curves computed from ~89,000 healthy dogs aged 2–24 months in the open Salt et al. 2017 dataset (PLOS ONE, CC BY 4.0), grouped into PuppySize's five size classes.
- Cavalier King Charles Spaniel · 13–18 lb
- Your puppy
Each shaded band shows the typical weight range at every age, with the line marking the middle of that range.
| Age | % of adult weight | Estimated weight |
|---|---|---|
| 2 months | 30% | 4–5 lb |
| 3 months | 44.2% | 6–8 lb |
| 4 months | 59.5% | 8–11 lb |
| 5 months | 70.5% | 9–13 lb |
| 6 months | 79.4% | 10–14 lb |
| 7 months | 86.7% | 11–16 lb |
| 8 months | 92.1% | 12–17 lb |
| 9 months | 96.2% | 13–17 lb |
| 10 months | 98.2% | 13–18 lb |
| 11 months | 100% | 13–18 lb |
| 12 months | 100% | 13–18 lb |
How confident is this estimate? Based on an official breed standard or cross-checked veterinary/registry sources.
About this breed's data: AKC standard: 12-13 in and 13-18 lb (no separate male/female split). Distinct from the smaller, flatter-faced King Charles Spaniel / English Toy Spaniel.
Sources: American Kennel Club, Salt et al. 2017 (PLOS ONE) growth data.
Cavalier King Charles Spaniel questions
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