Staffordshire Bull Terrier Size Chart: How Big Do Staffordshire Bull Terriers Get?

Are you planning to adopt a Staffordshire Bull Terrier? If so, your mind is probably riddled with all sorts of questions. How big do Staffordshire Bull Terriers get? At what age are Staffies fully-grown? Is Staffy a small or medium dog? And so on… In this Staffordshire Bull Terrier size guide, we’ll be learning all about their size and growth patterns from birth to adulthood. Here you’ll also find our interactive Staffordshire Bull Terrier size chart and growth calculator, which is a super helpful tool for all Staffy parents. Let’s dig in!

Our handy interactive puppy growth chart and calculator takes all the hard work out of predicting your puppy’s potential adult size. This helps you to know exactly what you are in for.

Staffordshire Bull Terrier Size Predictions: How Big Do Staffordshire Bull Terriers Get?

Brave, intelligent, fearless, and loyal – there probably aren’t better words to describe the amazing Staffordshire Bull Terrier. Contrary to the popular misbelief, Staffordshire Bull Terriers are gentle and affectionate dogs who are not one bit aggressive. They’re even great around children! Although they sport an athletic, muscular build, and some might be even a bit intimidated by them, Staffies are actually super loving and above all they enjoy lots of cuddles. And what’s great about Staffies is that compared to some other similar breeds, their size makes them much more suitable for many families who wouldn’t be able to adopt a similar-looking dog who is larger in size. 

But what is the average size of a Staffordshire Bull Terrier? Staffordshire Bull Terriers weigh between 24 and 38 pounds with an average height of 14 to 16 inches. However, not all Staffies fall inside the AKC breed standards and some pups might be slightly smaller or larger. Some variation in size is completely normal, but you should beware of your pup being too small or too little, as this may indicate an underlying health issue or obesity. 

Are There Different Sizes Of Staffordshire Bull Terriers?

The Staffordshire Bull Terrier comes in just one size. However, like with many other breeds, there’s a slight size difference between male and female Staffies. Mainly, male pups are usually a few pounds heavier, stockier, and sometimes an inch or two taller than females. 

Let’s take a closer look at the average Staffordshire Bull Terrier size chart for male and female pups:

	Male Staffordshire Bull Terrier	Female Staffordshire Bull Terrier
Weight	28-38 pounds	24-34 pounds
Height	14-16 inches	14-16 inches
When Full-Grown?	18-24 months	18-24 months

*A dog’s height is measured from the withers, also known as their shoulder blades.

As we can see from the Staffordshire Bull Terrier size chart above, male Staffordshire Bull Terriers weigh between 28 and 38 pounds, whereas females weigh around 24 to 34 pounds. Both of them are usually similar in height, but it’s not uncommon for females to be slightly shorter than males. 

Additionally, there’s also the American Staffordshire Terrier, which many people often confuse with the Staffordshire Bull Terrier. Although their names are almost identical, there’s actually quite a big size difference between these two breeds. When Staffordshire Bull Terriers weigh between 24 and 38 pounds, American Staffordshire Terriers weigh a whopping 40 to 70 pounds and have a height of 17 to 19 inches. 

Staffordshire Bull Terrier Size Charts & Growth Patterns – Month Wise

Staffordshire Bull Terriers experience the fastest growth in their first 6 months from birth. It’s interesting to note that dogs usually reach their full adult height sooner than their adult weight. Once they’ve reached their adult height, they’ll continue to gain a bit more weight until they plateau at their adult weight around their first or second birthday. For Staffordshire Bull Terriers, that’s usually around 18 months old.  

Here’s the average Staffordshire Bull Terrier size chart by age for male Staffies:

Age	3 months	6 months	9 months	12 months	18 months
Weight	10-15 pounds	18-27 pounds	22-32 pounds	24-35 pounds	28-38 pounds
Height	7-9 inches	10-12 inches	12-14 inches	14-16 inches	14-16 inches

Looking at the Staffordshire Bull Terrier size chart above, we see that by 3 months old they’ve already reached about ⅓ of their adult weight and about half of their adult height. By 6 months old, they’ve reached about ⅔ of their adult weight and about ¾ of their adult height. After that, their growth will start to slow down over time, and over the upcoming months the growth isn’t as rapid anymore. We can typically expect this breed to reach its full height around their first birthday, but they will continue to gain more weight and fill out over the next few months. Staffordshire Bull Terriers usually reach their full-grown weight around 18 months old, but it’s not uncommon for some pups to continue gaining a few more pounds up until their second birthday. 

Tip for Staffordshire Bull Terrier puppy parents: If you’d like to predict your Staffy’s full-grown size and track their growth into adulthood, make sure you check out our interactive Staffordshire Bull Terrier size chart and growth calculator. Just enter your puppy’s current weight and current age in weeks, and our calculator takes care of the rest! 

Staffordshire Bull Terrier Size: Frequently Asked Questions

How Big Do Staffordshire Bull Terriers Get?

Staffordshire Bull Terriers weigh between 24 and 38 pounds and have a height of 14 to 16 inches at the shoulder. Males are typically slightly heavier than females, averaging between 28 and 38 pounds. Females tend to weigh between 24 and 34 pounds. Typically, we can expect a Staffordshire Bull Terrier to reach its full-grown size around 18 months old, but they might continue to fill out and grow bulkier up to 2 years old. 

A different formula you could use is:

1. Growth = current weight / current age in weeks
2. Adult weight = Growth x 52 (number of weeks in one year)

So, for example, if your 12-week old pup weighs 18 pounds. You simply divide the current weight by their age in weeks and multiply the result with 52:

Is Staffordshire Bull Terrier A Medium Or Large Dog?

Staffordshire Bull Terriers are medium sized dogs with a compact, muscular build. Although they’re much smaller than some other similar-looking breeds, they’re still active dogs who need their daily exercise and plenty of physical and mental stimulation. 

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So, there you have it! Everything about the Staffordshire Bull Terrier size and growth patterns. We hope this article has been a helpful resource about the Staffy’s size and growth from puppyhood to full maturity. After all, as a new puppy owner, it’s crucial you keep track of your dog’s development to make sure they live a long, healthy, and happy life.