The Ultimate Dog Shop

Dog Sizing Guide

How to Measure your Dog

Measuring your dog is very important as sizes for Dog Clothes can be confusing; remember that sizes cater for the tiniest of dogs, so your ''small'' Spaniel may in fact be an x-large in dog clothing when compared to small for a Teacup Chihuahua!  We recommend you measure your dog using the guidelines shown below and choose the size giving the most room.

Important:- This is a guide on 'how' to measure your dog.  In addition to this page, please ensure you check the product size which can be found on each individual product page entitled 'Sizing Guide'.  This can be found under the product description.  Please check the size on every product you are looking at because sizes vary between styles, so a 'small' in one brand, can be a 'medium' in another brand.

1) Dog Clothes Measuring Guide



1) The 'chest' is a really important measurement, getting it right will mean your dog can move freely without any restriction or without tripping.  

2) If your dog ''freezes'' when wearing a new coat - it could be because their movement is restricted and they need to go up a size.

3) If your dog is on the cusp of two sizes (or at the maximum of one size), is a little bit ‘chubby’, has a broader chest or has a thick coat, it is often better to choose the larger size.  Remember that any dog clothing and especially dog collars should fit comfortably and snug without any restriction or tightness. 

If your pet is new to wearing dog clothes, then our article on introducing your pets to clothes will give you some tips to help them get used to wearing their new attire.  It is important to ensure that your pet is happy wearing clothes and that they are supervised at all times.  If your dog is prone to chewing - then it may be best to remove any fashion accessories - such as a broach, otherwise, please supervise your pet at all times.


2) Dog Collar Measuring Guide

Dog collars are measured by neck circumference ie where the collar will sit.  Dog collars should be snug with enough room to fit two fingers between your dogs neck and the collar. The collar should not be loose enough to slip over your dogs head. Collars should also not be so tight as to restrict breathing or cause coughing. There are 2 ways in which you can determine the right size collar for your dog.

Option 1: measure your dog's old collar (if it's the right size). To do this lay the dog collar out and use a tape measure from the outer edge of the buckle to the hole used to find the right length.

Option 2: measure your dog's neck. To do this, use a tape measure to measure how you wish the dog collar to fit around your dog’s neck i.e. with enough room as not to be tight but not too loose that the head slips through. A rough gauge is to allow two - three fingers to fit easily under the tape whilst measuring. Alternatively measure your dog’s neck, then add a couple of inches.

On most dog collars or cat collars you will see the neck length quoted such as 8"-11".   The diagram above shows you how this measurement is calculated.  If the dog collar length is quoted - this is most likely the full length of the collar from buckle to the opposite end.

It is best to go for a collar size where the neck size sits mid-way.  This will allow you the room to alter accordingly.

Note: for Sighthounds such as the Greyhound and some other long necked breeds, the collar is worn much higher, actually at the top of the neck below the head, but in measuring for coats and similar garments, the neck measurement for these dogs is taken lower than the collar, about midway between collar level and withers.  For dogs with short thick necks, such as Pugs, and dogs with a very full coat in the neck/chest area like Pomeranians, determining the neck measurement can be a bit tricky. For most clothing, and neckwear accessories like bandanas on this type of dog, you may want to use a neck measurement taken a bit lower than collar level (closer to the withers) for a more flattering fit.

3) Dog Harness Measuring Guide

Dog harnesses are measured by chest circumference. This is the widest part of your dog's chest, usually just behind the front legs.

Some dog harnesses, such as the Puppia Harness and other Soft Dog Harnesses need you to check the neck size.  This is the size that will need to be large enough to slip over your pet's head comfortably.  Harnesses sit just below the neck on top of the shoulders - so should be slightly larger than the actual neck size. 

For more information on measuring your dog for a harness and how to fit a soft dog harness, please see our  helpful guide in the Dog Blog - "How to measure and fit a Dog Harness".

4) Dog Socks Measuring Guide

Our Dog Socks are mainly suitable for tiny to small breeds of pets and puppies.  It is important to measure your pet's paws accurately, taking into account their paw width and length.  Socks that are too big will fall off easily and socks that are too small will not be comfortable for your furry friend.

Each brand of Dog Socks may have their own sizes which means a small in one design may be a medium in another so always click on the 'Sizing Guide' found on each product page to double check the measurements of those particular socks.  Socks sizes are governed by length and width.  Examples of typical sizes are shown in the diagrams below:-


Remember dogs come in all shapes and sizes and the information shown is for guidance only, we are happy to exchange items for alternative sizes where available. If you require any assistance please contact us ( and we're always on hand to assist with choosing the right size.