PuppyGrowthCavalier King Charles Spaniel growth chart (month by month)
Typical weight ranges for a healthy Cavalier King Charles Spaniel puppy, based on the breed's adult weight and a small-breed growth curve.
| Age | Male | Female |
|---|---|---|
| 2 months | 2.9–4.0 lb 1.3–1.8 kg | 2.9–4.0 lb 1.3–1.8 kg |
| 3 months | 4.7–6.5 lb 2.1–2.9 kg | 4.7–6.5 lb 2.1–2.9 kg |
| 4 months | 6.5–9.0 lb 2.9–4.1 kg | 6.5–9.0 lb 2.9–4.1 kg |
| 5 months | 8.1–11 lb 3.7–5.1 kg | 8.1–11 lb 3.7–5.1 kg |
| 6 months | 9.4–13 lb 4.2–5.9 kg | 9.4–13 lb 4.2–5.9 kg |
| 8 months | 11–15 lb 5.1–7.0 kg | 11–15 lb 5.1–7.0 kg |
| 10 months | 12–17 lb 5.6–7.8 kg | 12–17 lb 5.6–7.8 kg |
| 12 months | 13–18 lb 5.9–8.2 kg | 13–18 lb 5.9–8.2 kg |
How big does a Cavalier King Charles Spaniel get?
An adult male Cavalier King Charles Spaniel usually weighs 13–18 lb (5.9–8.2 kg) and an adult female 13–18 lb (5.9–8.2 kg). Cavaliers weigh 13–18 lb as adults and are usually full grown by about 12 months.
When is a Cavalier King Charles Spaniel fully grown?
As a small breed, a Cavalier King Charles Spaniel typically reaches its adult weight at about 12 months. Height usually finishes first; chest and muscle keep filling out for a while after.
Use the calculator above with your puppy's current weight to see whether it is tracking low, high or right on the curve.
Frequently asked questions
How much should a 6 month old Cavalier King Charles Spaniel weigh?
Most male Cavalier King Charles Spaniel puppies weigh about 9.4–13 lb at 6 months, and females about 9.4–13 lb.
How much should an 8 week old Cavalier King Charles Spaniel weigh?
Roughly 2.9–4.0 lb for males and 2.9–4.0 lb for females, though puppies vary a lot at this age.
When does a Cavalier King Charles Spaniel stop growing?
Most Cavalier King Charles Spaniels reach their adult weight at around 12 months.
Is my Cavalier King Charles Spaniel puppy overweight?
Check body condition: you should feel the ribs easily without pressing hard and see a waist from above. If in doubt, ask your vet.
More free pet calculators
PuppyGrowthCalc gives general estimates for healthy pets. Every animal is different. Ask your vet about your pet's ideal weight, diet and health.