All Breeds › Cocker Spaniel
Predict your Cocker Spaniel's adult weight using veterinary growth data
| Male Adult Weight | 25–30 lbs |
| Female Adult Weight | 20–25 lbs |
| Male Height | 14.5–15.5 inches |
| Female Height | 13.5–14.5 inches |
| Life Expectancy | 10–14 years |
| Size Category | medium |
| AKC Group | Sporting |
| Full Grown By | ~12 months (52 weeks) |
Enter your puppy's age and current weight for a personalized prediction.
Open CalculatorExpected weight at key ages based on veterinary growth data for medium-sized breeds.
| Age | % Adult Weight | Male Est. | Female Est. |
|---|---|---|---|
| 8 weeks | 22% | ~6 lbs | ~5 lbs |
| 4 months | 49% | ~14 lbs | ~12 lbs |
| 6 months | 74% | ~21 lbs | ~17 lbs |
| 8 months | 92% | ~26 lbs | ~21 lbs |
| 11 months | 100% | ~28 lbs | ~23 lbs |
| Adult | 100% | 25–30 lbs | 20–25 lbs |
Most Cocker Spaniels reach their adult weight by around 12 months (52 weeks).
As a medium-sized breed, your Cocker Spaniel reaches adult size by 12-15 months. Medium-sized breeds typically finish growing between 12 and 14 months.
Individual dogs may reach full size slightly earlier or later. Spayed or neutered puppies may also have slightly different growth timelines. Regular vet checkups are the best way to track your Cocker Spaniel's progress.
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Because Cocker Spaniels are a medium-sized breed, look for a all-breed puppy formula designed for their growth needs. Balanced nutrition for moderate growth.
Feed puppy-specific food until your Cocker Spaniel reaches adult size (around 12 months), then transition to an adult formula over 7–10 days.
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For a medium-sized breed like the Cocker Spaniel, a 36-inch crate (fits dogs up to ~50 lbs) is the right adult size. Buy the adult size from the start and use the included divider panel while your puppy is still growing.