How big does a Boston Terrier get? Adult weight is 12-25 lbs, and growing usually finishes around 11 months. The curve shows the weight to expect along the way.

Age	Expected weight
2 months	3.2-6.7 lbs
3 months	5.5-11.4 lbs
4 months	7.3-15.2 lbs
5 months	8.8-18.4 lbs
6 months	10.3-21.5 lbs
8 months	11.2-23.3 lbs
10 months	11.8-24.6 lbs
12 months	12-25 lbs

Typical range for a healthy puppy. Individual dogs can sit above or below it.

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Boston Terrier - Frequently Asked Questions

How big is a Boston Terrier? +

The Boston Terrier is a small breed, standing 15-17 in tall and weighing 12-25 lbs.

How much does a Boston Terrier weigh at 6 months? +

A Boston Terrier usually weighs 10.3-21.5 lbs at 6 months and reaches 12-25 lbs once fully grown, at around 11 months.

How long do Boston Terriers live? +

The average lifespan of a Boston Terrier is 11-13 yrs.

How much does a Boston Terrier cost? +

Expect to pay $600-$2,000 for a Boston Terrier puppy, plus around $800-$1,400 per year for food, vet care, grooming, and supplies.

Is a Boston Terrier hypoallergenic? +

No, the Boston Terrier is not considered hypoallergenic and may trigger symptoms in people with dog allergies.

Is a Boston Terrier good with kids? +

Yes - Boston Terriers are known for being gentle and patient with children, making them a solid family choice.

Is a Boston Terrier good for apartments? +

Yes - the Boston Terrier adapts well to apartment living thanks to its moderate energy and size.

Is a Boston Terrier easy to train? +

Yes - the Boston Terrier is highly trainable, eager to please, and picks up commands quickly. Good choice for first-time owners.

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