How big is my dog going to get?
Veterinary & Aquatic Services Department, Drs. Foster & Smith

Q. Can I estimate how big my puppy will get?
A. Puppies at different ages grow at different rates, and puppies of different breeds grow at different rates.

A growth chart for dogsTo estimate the size of dog your puppy will grow up to be, use the chart on the right. Find your dog's age, and then draw a line straight up until you find your dog's weight. Then follow the nearest curve or make an imaginary one and follow it over to 30 months of age. Read the corresponding weight for that age. This will approximate the weight your dog will be at adulthood. Remember, this is only an estimate.

Generally, an adult dog will weigh about twice as much as he did when he was 4 months of age; giant breeds will double what they weighed at 5 months.


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Kirk, RW (ed). Current Veterinary Therapy VI. WB Saunders Co., Philadelphia PA, 1971:1366.

Kirk, RW; Bistner, SI. Handbook of Veterinary Procedures and Emergency Treatments, 4th edition. WB Saunders Co., 1985:885.

Mosier, JE (ed). Canine pediatrics. The Veterinary Clinics of North America February 1978;8(1): 140.

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