How to Measure Your Dogs Neck and Breast Girth

It can be difficult to know what size dog harness your pup needs. If you look at a dog size chart, you’ll usually see two different measurements: neck girth and chest girth.

Neck girth is the circumference of your dog’s neck. You’ll place one end of your tape at the nape of their neck, just above the shoulders, then wrap the cord down to the top of their chest and around to meet the other end. You want to be able to fit two fingers comfortably between your dog’s gear and their body—so follow suit with your measuring tape and leave a little room.

Chest girth is the circumference of your dog’s chest. To take this measurement, you’ll want to find the widest part of your dog’s rib cage.

Once you have your dog’s measurements, you should find the size chart for the product you’re considering. And you’ll notice chest girth, neck girth all show up alongside helpful information. Now you can choose the right size for your pup use the number you've just measured.

Once in a while, you’ll hit a snag: your dog is between sizes. When that happens, it’s usually best to go with the larger option. You can often adjust the straps for an ideal fit!