How Big Will My American Cocker Spaniel Get?
American Cocker Spaniels are a medium breed that typically weigh 10–14 kg (22–31 lbs) at full size. Medium breeds usually reach their adult weight around 12–14 months.
American Cocker Spaniel Size at a Glance
Adult Weight
10–14 kg
22–31 lbs
Adult Height
34–39 cm
13–15 in
Size Category
medium
Fully Grown By
12–14 mo
American Cocker Spaniel Growth Chart
American Cocker Spaniel Weight by Age
Predict Your American Cocker Spaniel Puppy's Adult Weight
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Open Weight CalculatorAmerican 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 American 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 American 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 American Cocker Spaniel puppy get?
A full-grown American Cocker Spaniel typically weighs between 10–14 kg (22–31 lbs). Males tend to be on the larger end of the range while females are usually smaller.
When do American 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 American Cocker Spaniel puppy weigh at 12 weeks?
At 12 weeks, a American Cocker Spaniel puppy typically weighs around 3.6–4.8 kg (8–11 lbs), which is roughly 30–40% of their adult weight.
How can I tell if my American Cocker Spaniel puppy is the right weight?
Compare your puppy's weight to the growth chart above. A healthy American 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 American Cocker Spaniels
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