Cocker Spaniel Puppy Weight Calculator

Calculate the adult weight for your Cocker Spaniel. Just type your puppy’s current weight and age, and see how big your puppy gets.

Cocker Spaniel Growth Guide

Breed Overview

The Cocker Spaniel, one of the most beloved companion breeds, originates from the United Kingdom and was bred primarily as a hunting dog, especially adept at flushing and retrieving game birds. Today, two main types are recognized: the American Cocker Spaniel and the English Cocker Spaniel. Both are affectionate, intelligent, and eager to please, making them excellent family pets.

Cocker Spaniels fall into the medium-sized breed category, typically weighing between 20 and 30 pounds as adults. Tracking growth is important for this breed because they are prone to obesity and joint issues if they grow too quickly or are overfed. Understanding their weight trajectory helps prevent health problems and ensures optimal development.

For a reliable breed overview, see the American Kennel Club Cocker Spaniel profile.

Cocker Spaniel Growth Chart & Weight Ranges

Below is an approximate weight guide for Cocker Spaniel puppies. Individual growth may vary based on genetics, nutrition, and activity levels.

Age	Average Weight Range
4 weeks	2–4 lbs
8 weeks	5–8 lbs
3 months	9–12 lbs
4 months	12–16 lbs
6 months	17–22 lbs
9 months	20–26 lbs
12 months	22–30 lbs (adult size)

Males typically weigh 5–8 lbs more than females, and they may also have a slightly more muscular build.

How Much Bigger Will My Cocker Spaniel Puppy Get?

Most Cocker Spaniel puppies will reach 50% of their adult weight by 4 months old. They tend to achieve full height by around 9 months but may continue filling out until about 12–14 months of age.

Rule of Thumb:
To estimate your Cocker Spaniel’s adult weight, double their weight at 16 weeks. For instance, if your puppy weighs 12 lbs at 4 months, they may finish growing around 24 lbs.

Unlike large or giant breeds, Cocker Spaniels typically stop growing by 12–14 months, though some may mature slightly slower.

Cocker Spaniel Growth Tips

Nutrition

Feed your puppy a high-quality, breed-appropriate puppy food that supports moderate growth and provides essential nutrients. Puppies should eat three meals per day until six months, then transition to two meals daily. Monitor portion sizes to prevent excessive weight gain.

Exercise

Cocker Spaniel puppies are playful but not overly energetic. Short walks and gentle play are ideal during the early months. Avoid high-impact activity until growth plates close (usually by 12 months). They also thrive on mental stimulation like scent games or light training tasks.

Health Watch

Key growth-related health concerns include:

• Hip dysplasia
• Obesity
• Luxating patella
• Ear infections (due to their long ears)

Routine vet checkups and maintaining a healthy weight are crucial in preventing these issues.