How Big Will My English Cocker Spaniel Get?
English Cocker Spaniels are a medium breed that typically weigh 12–16 kg (26–35 lbs) at full size. Medium breeds usually reach their adult weight around 12–14 months.
English Cocker Spaniel Size at a Glance
Adult Weight
12–16 kg
26–35 lbs
Adult Height
38–43 cm
15–17 in
Size Category
medium
Fully Grown By
12–14 mo
English Cocker Spaniel Growth Chart
English Cocker Spaniel Weight by Age
Predict Your English Cocker Spaniel Puppy's Adult Weight
Enter your puppy's current age and weight for a personalized prediction.
Open Weight CalculatorEnglish Cocker Spaniel Growth & Development
Medium breeds usually reach their adult weight around 12–14 months. They have a steady growth curve with most growth happening in the first 6 months.
A English Cocker Spaniel's growth rate is fastest in the first 6 months of life. During this period, proper nutrition and regular vet checkups ensure your puppy stays on a healthy growth trajectory.
Factors that influence your English Cocker Spaniel's adult size include genetics (parent size), nutrition quality, spay/neuter timing, and overall health. Males typically weigh 10–20% more than females.
Frequently Asked Questions
How big will my English Cocker Spaniel puppy get?
A full-grown English Cocker Spaniel typically weighs between 12–16 kg (26–35 lbs). Males tend to be on the larger end of the range while females are usually smaller.
When do English Cocker Spaniels stop growing?
Medium breeds usually reach their adult weight around 12–14 months. They have a steady growth curve with most growth happening in the first 6 months. Individual dogs may reach their full size slightly earlier or later depending on genetics, diet, and overall health.
How much should a English Cocker Spaniel puppy weigh at 12 weeks?
At 12 weeks, a English Cocker Spaniel puppy typically weighs around 4.2–5.6 kg (9–12 lbs), which is roughly 30–40% of their adult weight.
How can I tell if my English Cocker Spaniel puppy is the right weight?
Compare your puppy's weight to the growth chart above. A healthy English Cocker Spaniel puppy should follow a steady growth curve. If your puppy's weight deviates significantly from the expected range, consult your veterinarian.
Learn More About English Cocker Spaniels
Explore the full breed profile, find name ideas, or check ownership costs.