How Big Do Greyhounds Get? [Average Height, Weight and Size]

Greyhounds are a graceful dog breed with a slim, aerodynamic build. These dogs were built for speed; they have narrow heads and slender legs which made them an ideal working-dog back in the day. But how big does the average greyhound get and how quickly do they reach full adult maturity? I spent some time researching greyhounds and the breed standard. I would like to share the information and data I pulled together here today.

So, how big do greyhounds get? The average greyhound will reach between 25-30 inches in height, reaching its full physical maturity in around 18 months from birth. Male greyhounds are slightly heavier, ranging from 55-85 pounds at full adult weight compared to females who typically range between 55-70 pounds.

Factors that can influence their final and overall size include a combination of genetics, health, nutrition, and sleep.

Greyhounds are not an energetic breed. In fact, they are quite lazy, and they like to spend most of their day napping. They are, after all, sprinters and not distance runners.

Despite their large size, greyhounds do not require much space. Greyhounds can live quite happily in an apartment as much as in a large house with a spacious garden.

Greyhounds may well be low-energy dogs, but they do like a daily walk. If these dogs don’t get sufficient exercise, they are likely to become bored, which can lead to destructive behavior.

Let us now take a closer look at a greyhounds general size so you can get a better understanding and set your expectations if you do decide to adopt one.

Average Greyhound Height, Weight, And Size

Greyhound are considered to be a large dog breed; reaching their full height and frame within 18 months following their birth.

They generally reach between 25-30 inches in height, regardless of the sex, although males are generally heavier at their final weight.

There are actually two different types of greyhounds, and they do vary by a fraction in size.

Racing greyhounds are generally slightly smaller (25-29 inches), whereas show greyhounds are slightly larger (26-30 inches) in height by the time they are adults. It is a marginal difference but one to be aware of nonetheless.

Of course these numbers are general averages, and there are always exceptions.

The height and frame of a dog is largely dependent on their genes and what they inherit from their parents. This assumes there is nothing wrong with their growth plates, or they are damaged before they fully formed at around 12 months (59 weeks) of age.

Weight on the other hand can be more easily influenced through lifestyle factors; most importantly diet and exercise.

Greyhounds can become overweight if fed an inappropriate diet and not provided with sufficient exercise.

Retired racing dogs tend to more susceptible as they reduce their former activity.

Excess weight can be an issue with this breed; even five pounds over the breeds standard is more than enough to lead to health problems.

It is therefore essential that you feed your greyhound a proper diet without too many treats and inappropriate foods. Its best to liaise with a vet to ascertain the right serving sizes and frequencies.

Owning a large dog breed, such as the greyhound, comes with more responsibility than dogs of other size categories.

Obedience training is more critical to a large-sized dog than a smaller breed, because of course, there is more potential for danger and they can be harder to control.

Large dogs will also eat more and may require more veterinary care than smaller breeds, which is costly.

One condition to be aware of which seems to affect the greyhound more than in other breeds is hypothyroidism.

This can cause lethargy, weight gain, and a general lack of thirst for life.

While it can be treated with medication; and usually resolves these symptoms, it is important to keep them at a healthy weight and to ensure they are able and willing to exercise as required.

The greyhound, despite their large size, is not an exuberant dog. But they are happiest when well trained and kept occupied.

When Is A Greyhound Fully Grown?

Greyhound puppies are adorable but can be a challenge to raise. They are not hyperactive, but they are full of energy, and they generally will not calm down until they reach 18 months old.

As your puppy grows, you’ll see them get stronger, faster, and larger – you will wonder where did all that time go? In the end, you’ll end up with a relatively large dog that is relatively calm and easy going.

Greyhounds may appear to go through an explosive growth phase in the early months of life, however, compared to other dogs they can be considered slower-growing.

Some dogs reach physical maturity in 12 months, but as a large dog, the greyhound will take up to 18-24 months to fully develop – both in height and in weight. Usually, height comes first and weight stabilizes thereafter.

Below we will take a look at the respective growth rates of both male and female greyhounds:

Growth of a Male Greyhound

• The weight of a male greyhound at 3 months should be between 22 and 31 lbs (pounds).
• At 6 months, they will likely weigh between 42 and 58 lbs (pounds).
• At 1 year, a male greyhound should weigh between 55 and 80 lbs (pounds).

Age	Weight – Low Average (lbs)	Weight – High Average (lbs)
3 Months	22	31
4 Months	28	39
5 Months	35	50
6 Months	42	55
7 Months	46	59
8 Months	50	70
9 Months	52	74
10 Months	55	77
11 Months	55	79
12 Months	55	80
13 Months	55	82
14 Months	55	83
15 Months	55	84
16 Months	55	85

Growth of a Female Greyhound

• The weight of a female greyhound at 3 months should be between 22 and 27 lbs (pounds).
• At 6 months, they will likely weigh between 41 and 52 lbs (pounds).
• At 1 year, a female greyhound should weigh between 55 and 70 lbs (pounds).

Age	Weight – Low Average (lbs)	Weight – High Average (lbs)
3 Months	22	27
4 Months	28	35
5 Months	37	44
6 Months	41	52
7 Months	44	55
8 Months	48	59
9 Months	50	63
10 Months	52	66
11 Months	54	68
12 Months	55	70
13 Months	55	71
14 Months	55	72
15 Months	55	73
16 Months	55	74

As you will see, the weight of a greyhound of the same age can vary by quite a bit but can still fall within the breed standards healthy range.

When Do Greyhounds Mentally Mature?