Below is a chart showing the average birth weight of a cocker spaniel puppy (show bred), rising through to eight weeks of age (when the pup would leave the breeder) & then onwards to adulthood. Weight increases as the puppy grows & then should slow down & stabilise once a puppy reaches maturity.

With puppies (prior to weaning) a steady weight gain is important & should follow the growth pattern. Once weaning commences weight gains increase rapidly - we don't start weaning until week 3 - 4. All weights are calculated from statistics of our own pups/dogs. All weights are metric i.e. in grams.

	Key:
D = Days Old	W = Weeks Old	M = Months Old

Weight Chart from Birth - 8 Weeks of age

Weight Chart from 10 Weeks of age - 12 Months

The chart above shows an average adult weight for a cocker (show bred) of 13.8 kilograms, the weights are for males & females (combined), however, bitches generally weigh a little less than males of the same age. The adult weight of a male dog may be as high as 15kg. Please note, whilst the actual weight of a dog (not including puppies) is relevant, the body shape is more relevant. For example, a 'petite' cocker would clearly be overweight if she weighed 13 kg!

Adult weight is generally achieved by 10 months of age. The rapid increase in weight is due to increased feeding (the bigger the dog the more food he eats = more growth!).

At 10 months of age, muscle development continues can lead to further weight gain (muscle is heavy!), therefore after adult weight is achieved there will be a further increase in weight in dogs in hard/fit condition without any obvious sign of obesity.