Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How to Measure Your Dog for a Harness (Size Chart Included)

white pitbull with a dog harness

While a dog collar is useful as a tag carrier, every dog needs a harness, which provides extra support and safety when taking your dog for a stroll or run in the park. Finding the right size harness is vital for your dog’s safety and comfort, and that’s why learning how to attach a dog harness properly is such an important skill for dog owners. Dog harnesses are available in several sizes, and it is vital to measure your dog to ensure it fits correctly.

In this article, we’ll discuss how you can measure your dog for a harness, how it should fit, and the types of harnesses that are available.

Dogster divider_v2_NEW_MAY_24_

Before You Start

While harnesses are frequently sold by weight, it is best to use a measuring tape to get a more precise measurement. Knowing your dog’s weight and measurements will help you find the best harness for your dog. The same methods should be used to measure your dog, whether small, medium, or large. If your dog moves around a lot and doesn’t usually stand still, ask a family member or friend to help you hold your dog in place while you take measurements.

How to Measure Your Dog For a Harness
You’re welcome to use our images, but we require you link directly to this site for credit (ex. Image from Dogster)

The 4 Steps to Measure Your Dog for a Harness

A dog size chart will typically show four measurements: neck girth, chest girth, body length, and weight. Combining these measurements and weight will help you determine the correct size of your dog’s harness.

1. Neck Girth

Your dog’s neck circumference is measured around where the collar hits. Wrap the tape measure just below the narrow part of the neck, where your dog usually wears a collar. If you’re unsure, the correct spot is just above your dog’s shoulders. You will start just above their shoulders, at the nape of their neck, and wrap the tape down to the top of their chest and around to meet the other end. Remember, you need two fingers to fit comfortably between your dog and the harness.

dog standing on the meadow while owner adjusting the harness
Image Credit: Miriam Doerr Martin Frommherz, Shutterstock

2. Chest girth

The chest girth is the circumference of your dog’s chest. Find the widest part of your dog’s chest to measure their girth. The widest part of a dog’s chest is usually right behind the armpits but measure from the bottom of your dog’s rib cage.


3. Body length

Body length is measured from the base of your dog’s neck to the base of their tail or from the beginning of their shoulders to the end of their hips.

merle great dane dog in harness lying on grass
Image Credit: Ralphs_Fotos, Pixabay

4. Weight

Weight can also play a role in determining the appropriate size. You can weigh your dog using an ordinary bathroom scale. Weigh yourself and then hold your dog while standing on the scale. Subtract the first figure from the second to get your dog’s weight.

Dogster divider_v3_NEW_MAY_24_

How Should a Dog Harness Fit?

A dog harness should fit snugly around your dog’s body but should never be too tight. There is a general rule of thumb for determining if your dog’s harness fits correctly and is snug enough not to cause pain or discomfort. Of course, different harnesses are available that are suitable for specific breeds, and each harness requires a different approach to fit correctly.

Once you attach the harness around your dog’s chest, place two fingers in each section of the area between the harness and your dog. If the fingers fit comfortably, you can be confident that the harness sizing will not cause pain or discomfort, and your dog won’t be able to escape it.

If the two fingers don’t fit comfortably, you’ll need to adjust the harness. For harness sizes 0–4, the bottom belly strap should be four fingers away from the dog’s front legs; however, for harness sizes Baby 1 and Baby 2, a width of two fingers is sufficient.

Most harnesses are easily adjustable by tightening or loosening the straps.

white pitbull with a dog harness
Image Credit: Lee Hardy, Unsplash

Types of Harnesses

The purpose of a dog harness is to guide your dog while they walk and reduce tension when they pull. It has straps that wrap around the dog’s torso and includes clips and D rings for the leash.

The different types include:
  • Back clip harness
  • Front clip harness
  • Step in harness
  • Dual clip harness

A back clip harness is ideal if your dog does not pull during walks and is well-trained to walk beside you. The leash easily attaches to the harness midway along the back to keep pressure off the throat. A front clip harness is ideal if your dog tends to pull when walking. There is a ring on the front chest strap to attach the leash, which will help stop your dog from pulling. The downside of this leash is that it can get tangled in the dog’s legs.

A dog steps into the straps of a step-in harness with both front paws, and the harness is then fastened at the back. This harness is ideal for dogs that don’t like to have something pulled over their heads.

Dual clip harnesses allow the leash to be attached to either the back or front clip. This makes them more versatile and can be used for either a gentle stroll or on a walk where you may need more control.

divider dog faces oct 2024

Conclusion

A dog harness with the right fit is crucial for the comfort and safety of your pet. Most dog harnesses come with a size chart; after taking your dog’s correct measurements and weight, you can find the best harness. Your dog’s harness should fit snugly but should never be too tight, and one way to determine if it’s too tight is by placing two fingers between the strap and your dog’s body to determine if it is a comfortable and functional fit.


Featured Image Credit: Lee Hardy, Unsplash

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How Big Do Mini Poodles Get? Vet Reviewed Average Weight & Growth Chart

When you buy a Miniature Poodle, you might not know just what to expect. How big are they going to get exactly and...

How Much Do Service Dog Trainers Make? 2025 Salary Overview

According to the Americans with Disabilities Act (ADA), a service dog is trained to perform tasks or work for a person with a...

How Much Exercise Do Bernese Mountain Dogs Need? Vet-Approved Advice

One of the friendliest giants of the dog world is the Bernese Mountain Dog. Bred to keep Swiss farmers company, pull carts, and...

How Much Exercise Do Akitas Need? Vet Approved Care Tips

The Akita is a loyal, intelligent, protective dog breed that can make an excellent family pet. They love spending time with kids and...

More related

Male vs Female German Shepherd: The Differences (With Pictures)

German Shepherds are one of the most popular dog breeds of all—and for many good reasons. These dogs are intelligent, fierce protectors with...

Klein Poodle Dog Breed Guide: Info, Pictures, Care & More

You might have heard this poodle breed called many different names including the French Poodle, Moyen Poodle, Chien Canne, and Klein Poodle. These...

Is a Pug Hypoallergenic? Vet-Verified Facts & FAQ

With their adorably curled tails and constantly “smiling” faces, Pugs are one of the world’s most well-known and easily recognized dogs. Many dog...

Do Dogs Understand Pointing? Scientific Discoveries & Training Tips (Vet Approved)

Pointing is an essential means of non-verbal communication. We use it between ourselves to reinforce something that we’re saying, and we also point...

Keep reading

American Journey Dog Food Review 2025: Pros, Cons & Recalls

Review Summary Introduction American Journey dog food has quickly become a favorite of dog parents everywhere. However, if you’re searching for it in your local pet store or even online, you are not likely to find it. This brand of...

Dogster_American Journey Dog Food Review

Victor vs Taste of the Wild Dog Food: 2025 Comparison, Pros & Cons

Victor and Taste of the Wild are two comprehensive dog food companies that offer a premium variety of excellent recipes. Similar to one another, both lines of food offer grain and grain-free high protein, fiber-rich, fat-dense recipes. These companies set...

Dogster_Dog Food Victor VS Taste of the Wild

Can Dogs Eat Flaxseed? Vet Reviewed Diet & Health Facts

Flaxseeds, sometimes known as linseeds, provide a host of nutritional benefits to humans. They are packed with essential omega-3 and omega-6 fatty acids and have anti-inflammatory properties that can ease joint pain and arthritis. But can dogs have flaxseed? The...

Can Dogs Eat_Flaxseed

Can Dogs Eat Eel? Vet-Approved Feeding Facts

Many dogs love fish, whether a fishy food formula or home-prepared salmon or herring. However, when it comes to less conventional types of fish, like eel, it can be hard to know what’s safe and what isn’t. In brief, common...

Can Dogs Eat Eel

10 Best Dog Foods for Jack Russells in 2025 – Reviews and Top Picks

Jack Russell Terriers are, without a doubt, a unique breed. The small dog is full of energy, a marvelous digger, and has more love than its little body can hold. While small in size, Jack Russells need a balanced diet...

jack russell terier puppy eating food from bowl

Can Dogs Have Balsamic Vinegar? Vet-Reviewed Facts You Should Know!

Balsamic vinegar is a delicious condiment that can be used in many types of cuisine in many ways. Whether it’s in dips and sauces or added to a marinade, it’s a tasty addition that adds a sweet “zing” to the...

Can Dogs Eat_balsamic vinegar

Can Dogs Eat Bugs? What the Science Says

Any dog owner has probably seen their dog eat a bug here and there, as dogs love to snoop and sniff outdoors. Dogs are curious beings and love to investigate the world around them, which can mean playing with a...

Can Dogs Eat_bugs

Can Dog Food Cause Elevated Liver Enzymes? Vet Approved Info

Blood tests provide a great gauge of your dog’s overall internal health. If you’ve recently had blood testing done and are curious about your dog’s high liver enzymes, you should familiarize yourself with what they mean and what’s causing them....

Ginger dog eating