English Cocker Spaniel weight chart by age
The breed standard gives 28 to 34 lb (12.7 to 15.4 kg) for adult males and 26 to 32 lb (11.8 to 14.5 kg) for females. The chart below estimates what a puppy should weigh at each age on the way there, in pounds and kilograms. Enter your puppy's age to see the estimate.
7.4 kg. Range 14.7 to 17.8 lb.
Male English Cocker Spaniel weight by age
| Age | Estimate (lb) | Estimate (kg) | Range (lb) | Range (kg) |
|---|---|---|---|---|
| 8 weeks | 7.1 | 3.2 | 6.4 to 7.8 | 2.9 to 3.5 |
| 12 weeks | 11.3 | 5.1 | 10.2 to 12.4 | 4.6 to 5.6 |
| 16 weeks | 16.3 | 7.4 | 14.7 to 17.8 | 6.7 to 8.1 |
| 20 weeks | 21.1 | 9.6 | 19.0 to 23.1 | 8.6 to 10.5 |
| 24 weeks | 24.9 | 11.3 | 22.5 to 27.3 | 10.2 to 12.4 |
| 32 weeks | 29.1 | 13.2 | 26.3 to 31.9 | 11.9 to 14.5 |
| 40 weeks | 30.5 | 13.8 | 27.5 to 33.4 | 12.5 to 15.2 |
| 1 year | 30.9 | 14.0 | 27.9 to 33.9 | 12.7 to 15.4 |
| 15 months | 31.0 | 14.1 | 28.0 to 34.0 | 12.7 to 15.4 |
| 18 months | 31.0 | 14.1 | 28.0 to 34.0 | 12.7 to 15.4 |
Female English Cocker Spaniel weight by age
| Age | Estimate (lb) | Estimate (kg) | Range (lb) | Range (kg) |
|---|---|---|---|---|
| 8 weeks | 6.7 | 3.0 | 6.0 to 7.3 | 2.7 to 3.3 |
| 12 weeks | 10.6 | 4.8 | 9.5 to 11.7 | 4.3 to 5.3 |
| 16 weeks | 15.2 | 6.9 | 13.6 to 16.8 | 6.2 to 7.6 |
| 20 weeks | 19.7 | 8.9 | 17.7 to 21.8 | 8.0 to 9.9 |
| 24 weeks | 23.3 | 10.6 | 20.9 to 25.7 | 9.5 to 11.7 |
| 32 weeks | 27.2 | 12.3 | 24.4 to 30.0 | 11.1 to 13.6 |
| 40 weeks | 28.5 | 12.9 | 25.5 to 31.4 | 11.6 to 14.3 |
| 1 year | 28.9 | 13.1 | 25.9 to 31.9 | 11.8 to 14.5 |
| 15 months | 29.0 | 13.2 | 26.0 to 32.0 | 11.8 to 14.5 |
| 18 months | 29.0 | 13.2 | 26.0 to 32.0 | 11.8 to 14.5 |
The estimate uses the middle of the standard adult weight for each sex. The range uses the lowest and highest weight in the standard. Real puppies vary, and a healthy dog can fall outside the range.
English Cocker Spaniel growth chart
The dots mark one year. Growth is fastest in the first months and slows after that.
How this estimate is made
Two sources are combined. The adult weight comes from the American Kennel Club breed standard for the English Cocker Spaniel, which says: "The most desirable weights: males 28 to 34 pounds, females 26 to 32 pounds." The shape of growth is the average curve of the small breeds in a published study of puppies from 12 breeds (Cocker Spaniel, Miniature Schnauzer, Cairn Terrier). We scaled that curve to the English Cocker Spaniel's standard adult weight. We did not find a published growth table measured on English Cocker Spaniels, so these are estimates and not measurements for the breed. For a check on your own puppy, use the puppy size calculator and the body condition check.
Questions
How much should a English Cocker Spaniel puppy weigh at 8 weeks?
The estimate is about 7.1 lb (3.2 kg) for a male and 6.7 lb for a female.
How much should a English Cocker Spaniel puppy weigh at 16 weeks?
About 16.3 lb for a male and 15.2 lb for a female.
How much does a full-grown English Cocker Spaniel weigh?
The breed standard gives 28 to 34 lb (12.7 to 15.4 kg) for adult males and 26 to 32 lb (11.8 to 14.5 kg) for females. Pet dogs are often heavier than the standard, so use body condition as the better check.
When is a English Cocker Spaniel fully grown?
The growth curve we used reaches about 99 percent of adult weight in the first year or a little later.
Is my English Cocker Spaniel overweight?
Use the body condition check. Weight alone cannot say.
How much should I feed my English Cocker Spaniel puppy?
See the puppy feeding chart.
Sources
- American Kennel Club, English Cocker Spaniel breed standard (weight), official PDF.
- Hawthorne A.J. et al., "Body-weight changes during growth in puppies of different breeds", Journal of Nutrition, 2004 (growth curves of the small breeds).
Last reviewed 2026-10-26. This page is general information and not veterinary advice.