How Big Will My Cocker Spaniel Get?
Cocker Spaniels are a medium breed that typically weigh 11–14 kg (24–31 lbs) at full size. Medium breeds usually reach their adult weight around 12–14 months.
Cocker Spaniel Size at a Glance
Adult Weight
11–14 kg
24–31 lbs
Adult Height
34–39 cm
13–15 in
Size Category
medium
Fully Grown By
12–14 mo
Cocker Spaniel Growth Chart
Cocker Spaniel Weight by Age
Predict Your Cocker Spaniel Puppy's Adult Weight
Enter your puppy's current age and weight for a personalized prediction.
Open Weight CalculatorCocker 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 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 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 Cocker Spaniel puppy get?
A full-grown Cocker Spaniel typically weighs between 11–14 kg (24–31 lbs). Males tend to be on the larger end of the range while females are usually smaller.
When do 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 Cocker Spaniel puppy weigh at 12 weeks?
At 12 weeks, a Cocker Spaniel puppy typically weighs around 3.8–5 kg (8–11 lbs), which is roughly 30–40% of their adult weight.
How can I tell if my Cocker Spaniel puppy is the right weight?
Compare your puppy's weight to the growth chart above. A healthy 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 Cocker Spaniels
Explore the full breed profile, find name ideas, or check ownership costs.