Skip to content
Home
About
Contact

Boston Terrier Size & Weight Chart

Dr Shamsul Alam Roky
Reviewed by:
Dr. Shamsul Alam Roky
Veterinarian

Nicknamed the “American Gentleman” for its tuxedo-like coat markings and charming personality, the Boston Terrier is a compact and well-proportioned little dog. Combined with their small size and adorable features, the lively and affectionate Boston Terrier temperament makes them a great family pet and canine companion. But how big does this tiny breed get?

The average Boston Terrier typically ranges within a weight of 5 – 11 kg and a height of 38 – 43 cm. Its size usually depends on its bloodline, sex, eating habits and activity levels.

Be better prepared to meet your furry friend’s needs, and read on to learn more about the size and weight of the Boston Terrier dog breed.

Boston Terrier photo 2
Boston Terrier photo 1
Boston Terrier photo 3
Boston Terrier photo 4
Boston Terrier photo 5
Boston Terrier photo 6
Boston Terrier photo 7
Boston Terrier photo 8

How Big Is a Boston Terrier Dog?

Although a small breed, Boston Terriers’ shape and form give them a more pronounced look than other small dog breeds. They have a sturdy appearance with a broad chest and a slightly arched neckline.

According to the American Kennel Club (AKC) breed standards, their size should fit within 5-11 kg in weight and 38-43 cm in height. The height and weight of a male and female Boston Terrier will vary ever so slightly.

Although small, Boston Terriers have become a popular breed in dog sports and are mighty competitors amongst the big guys.
 

At What Age Does a Boston Terrier Reach Its Full Size?

Boston Terrier puppies will go through five growth spurts before it reaches adulthood at around 10-14 months of age. At this point, they’ll have reached their full size at 38 cm in height and 11 kg in weight.

As puppies go through extremely fast growth spurts, it’s especially important your Boston puppy gets the appropriate nutrition and nourishment it needs to grow into a healthy adult dog.
 

What Is the Ideal Weight For a Boston Terrier?

Boston Terriers have three weight classes, under 7 kilograms, 7-9 kilograms, and 9-11 kilograms. For a male Boston Terrier, a healthy weight is between 6-11 kilograms, and for a female, it should be 4-9 kilograms.

These small dogs are incredibly active, but no matter their weight, they should never look thin with visible bones.

How to Make Sure Your Boston Terrier Isn’t Overweight

Various signs can point toward your Boston Terrier being overweight, such as not being able to feel their ribs or waist, their belly being as large as their chest and tiring quickly during exercise.

Always consult your vet about the best ways to help your pup drop a few pounds.
 

Ensuring Your Boston Terrier Grows Properly

Boston Terrier owners need to familiarise themselves with this dog’s feeding and diet requirements at the various stages of its life. Species-specific dog food and regular exercise ensure your Boston Terrier grows appropriately.

Moreover, you should know your dog’s health history. Although a generally healthy breed, Boston Terriers tend to develop genetic health problems. Your breeder should always be able to provide you with the test results of your Boston Terrier puppy.
 

FAQs

Are there different sizes of Boston Terriers?

Boston Terriers are categorized into three weight classes. Like many other breeds, you can get what is known as a “Teacup” Boston Terrier, and these will typically fall under the weight class of 7 kilograms or less.

How much space do Boston Terriers need?

Boston Terriers do well in smaller homes and apartments, provided their exercise needs are met. Whether it be a 30-minute walk or a play session, you’ll find a lot of love and enthusiasm from this breed.

How do I know if my Boston Terrier is underweight?

Protruding waist and rib bones, no discernable body fat, and lethargic behaviour are all signs that your dog may be underweight. There can be multiple causes for your Boston being underweight, so always consult your vet on the next steps.
 

Final Thoughts on Boston Terrier Size & Weight

An interesting fact that many might not know is that Boston Terriers were formerly named Bull Terriers and formed part of the American Bull Terrier Club. But the name was changed upon the resistance of both Bulldog and Boston Terrier dog lovers.

Knowing the size and weight of your doggo can be essential in understanding the type of diet, health, and exercise needs they’ll have. More information on the Boston Terrier breed can be found at the Boston Terrier Club of America.

Also, if you want to procure a Boston pup, look towards a Boston Terrier Rescue or Shelter – remember, adopt, don’t shop wherever possible!

Learn more about: Boston Terrier Dog Breed Information

Other helpful information

  • Dog Breed Guides
  • Cat Breed Guides

Other related Boston Terrier guides

Boston Terrier photo 1

Do Boston Terriers Shed?

Boston Terrier photo 1

Boston Terrier Prices In Australia

Boston Terrier photo 1

Boston Terrier Training Guide – Crate, Toilet & More Tips!

Boston Terrier photo 1

Boston Terrier Temperament & Personality Traits

Boston Terrier photo 1

Common Boston Terrier Health Issues

Boston Terrier photo 1

Boston Terrier Grooming Tips & Styles

Boston Terrier photo 1

What to Feed a Boston Terrier? Diet & Feeding Chart

Boston Terrier photo 1

Boston Terrier Colours

Welcome to Pets Online, a team of pet parents, animal lovers and veterinarians devoted to providing you with everything you need to know about pets.

Facebook Instagram Linkedin
Dog Breed Guides
  • Foundation Stock Service
  • Gundogs
  • Herding
  • Hounds
  • Miscellaneous Class
  • Non-sporting
  • Sporting
  • Terriers
  • Toy
  • Unrecognized
  • Utility
  • Working
Cat Breed Guides
  • Exotic
  • Hairless
  • Hybrid
  • Long Haired
  • Natural
  • Oriental
  • Rex
  • Semi-long Haired
  • Short Haired
Adopt A Pet
Dog Adoption
  • ACT
  • NSW
  • NT
  • QLD
  • SA
  • TAS
  • VIC
  • WA
Cat Adoption
  • ACT
  • NSW
  • NT
  • QLD
  • SA
  • TAS
  • VIC
  • WA

© PetsOnline. All Rights Reserved 2025.

Privacy Policy

Terms & Conditions