How Big Do Jack Russell Terriers Get?

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How Big Do Jack Russell Terriers GetJack Russell terriers are lively and hyperactive dogs. This breed is the happiest around a loving, caring company and has a strong passion for work.

Jack Russells are by nature, hunting dogs, and this is an ability that is bred into them early on. In fact, because of this in-built desire, training is a must for them. Because they are hunting dogs, their built is adapted according to that.

Jack Russells, although not very tall, are full of energy and life. If you have a Jack Russell puppy, or are considering buying one, find out how big they will get!

The built of an average Jack Russell Terrier

This breed had been developed In Germany, originally for hunting purposes. Thus, it’s the natural framework of Russell Terriers to be strong enough to hunt. But also not tall or visible enough for their prey to see them coming.

These dogs use their petiteness as an advantage during their hunting sprees. They have compact and muscular bodies and measure between 10 – 15 inches in height at the maximum. That’s right! Your pet will still remain a cute size of 15 inches once fully grown.

How much does a Jack Russell Terrier Weigh?

Jack Russell terriers have remained almost the same as they were around 200 years ago. They are a strong, mighty, and determined breed, weighing between 13-18 lbs. on average. These are bold, athletic dogs who are quick and burn out most of their calories because of their hyper nature.

So, as an owner, you should be giving them at least 30 to 45 minutes of vigorous exercise daily. Other than that, they need lots of off-leash play to keep themselves fit and have a healthy, balanced weight.

Additionally, to keep them in good shape, they should also be fed up to 1.25 to 1.75 cups of high-quality dog food daily, split into two meals.  You will have to experiment with how much they eat at first, as it varies on a number of factors.

How tall does a Jack Russell Terrier get?

Jack Russell’s are purebred, so they tend to grow till the average size of their breed; however, sometimes they can be very small. On average, all Russell Terriers grow up to 15 inches tall.

According to the American Kennel Club standards, they stand tall between 12 – 14 inches. The Jack Russell Terrier Club of America (JRTCA) classifies Jack Russells into one of two groups based on size, that is – 10 to 12 1/2 inches and over 12 1/2 to 15 inches.

When is a Jack Russell Terrier fully grown?

Because of their smaller-than-average height, a Jack Russell Terrier does not take much time to grow. While there isn’t a standard age for them to grow their full size, your fluffy friend will grow to its maximum height within the first year.

Now, considering the size of this breed, your dog can reach its full-sized and well-heightened framework between 6 and 8 months old. Jack Russells typically reach their full weight by 12 months old.

Summing up

If you have an active lifestyle and ensure regular stimulation as a part of your routine, then Jack Russell Terriers are just the right breed for you. Don’t take their small size to mean that they are lazy in any way! So be sure that an energetic, yet loveable Jack Russell is a good match for your family to ensure a warm home for everyone.

As far as their growth is concerned, they can grow to their maximum potential by the time they are a year old. With a loving atmosphere and proper care, your faithful companion is bound to grow happily. If you notice anything unusual about your dog, we recommend you to visit the vet.