Cavalier King Charles Spaniel puppy growth: milestones and weight estimates
How fast a Cavalier King Charles Spaniel puppy grows, illustrative weight estimates and the limits of predicting adult size.
Cavalier puppies grow fast for the first five months and are close to adult height by nine or ten months. Most fill out through the chest by 12 to 18 months, while ear and leg feathering keeps lengthening until two or three years old. A 10-week-old puppy typically weighs somewhere around 1.5 to 2.5 kg.
Keep puppies lean during growth and discourage leaps off sofas and beds until about a year, since kneecap and hip problems occur in the breed. A young Cavalier that scratches repeatedly at one side of the neck without touching the skin, yelps when picked up, or seems sensitive around the head should be seen by a vet, as these can be early signs of a neurological condition the breed is known for.
Cavalier King Charles Spaniel puppy growth in numbers
Illustrative size-based model for a male Cavalier King Charles Spaniel, in kg, by age in months
| Age | Female | Male |
|---|---|---|
| 2 months | 2.1 kg | 2.1 kg |
| 3 months | 3.1 kg | 3.1 kg |
| 4 months | 4.1 kg | 4.1 kg |
| 5 months | 4.9 kg | 4.9 kg |
| 6 months | 5.6 kg | 5.6 kg |
| 7 months | 6 kg | 6 kg |
| 8 months | 6.4 kg | 6.4 kg |
| 9 months | 6.6 kg | 6.6 kg |
| 10 months | 6.8 kg | 6.8 kg |
| 12 months | 7 kg | 7 kg |
This is an editorial model scaled to a typical adult weight, not an observed breed average, a validated growth standard or a healthy-weight range. Do not adjust food to make a puppy follow this line. Discuss actual growth measurements with your vet.