Choosing a beautiful collar is only part of the experience. Finding the right fit is just as important.
A collar that fits properly should feel comfortable, sit naturally around your pet’s neck, and allow them to move without unnecessary restriction. Whether you are choosing an everyday collar or something more decorative for special moments, taking a few minutes to measure your pet before ordering can make a meaningful difference.
In this guide, we’ll walk you through how to measure your cat or dog for a collar, how much room to allow, and what to do if your pet falls between two sizes.
Why the Right Collar Fit Matters
Every pet is different.
Two cats of the same breed can have noticeably different neck sizes, just as two dogs of similar weight may require completely different collar sizes.
That is why choosing a collar based only on breed, age, or body weight is not always reliable.
A collar that is too tight may feel uncomfortable, while one that is too loose may not sit as intended and can move around excessively.
For the best result, always measure your pet’s actual neck before choosing a size.
What You’ll Need
Measuring your pet’s neck is simple. You only need:
- A soft measuring tape
- A calm moment with your pet
- A few treats, if your pet needs a little encouragement
If you do not have a soft measuring tape, you can also use a piece of string or ribbon and measure it afterward with a ruler.
You can also compare the measurement with a collar your pet already wears comfortably, but measuring the neck directly is usually the best place to start.
How to Measure Your Pet’s Neck
Step 1: Find the Natural Collar Position
Have your pet stand or sit in a relaxed position.
Locate the area around the neck where the collar would naturally rest. Avoid measuring too close to the head or too low toward the shoulders.
For cats and smaller dogs, it can help to gently smooth the fur before measuring, especially if they have a long or thick coat.
Step 2: Wrap the Measuring Tape Around the Neck
Place the soft measuring tape around your pet’s neck at the natural collar position.
The tape should rest against the fur without pulling tightly or compressing the neck.
Keep it level all the way around.
Step 3: Allow Comfortable Breathing Room
The measurement should not be skin-tight.
You want enough room for normal movement and comfort while still getting an accurate idea of your pet’s neck size.
A commonly used starting point is to allow enough space to comfortably place one or two fingers between the measuring tape and your pet’s neck, depending on your pet’s size and the type of collar.
The goal is a secure but comfortable fit — never tight, and never excessively loose.
Step 4: Record the Measurement
Write down the measurement in both centimeters and inches if possible.
For example:
Neck measurement: 28 cm / 11 in
You can then compare this number with the size chart shown on the product page.
How Should a Pet Collar Fit?
Once the collar is on, it should sit comfortably around the neck without pressing into the skin.
Check that:
- Your pet can move their head and neck naturally
- The collar is not pressing tightly against the neck
- It is not hanging excessively loose
- Decorative elements sit in the intended position
- Your pet appears comfortable while wearing it
Because body shape, fur thickness, and collar construction can all affect the final fit, the neck measurement should always be considered together with the individual product’s size guide.
Measuring a Cat for a Collar
Cats often have relatively small necks, and long-haired breeds can appear much larger around the neck than they actually measure.
When measuring a cat:
- Gently settle the fur without pressing it flat
- Measure the actual neck rather than the outside of a thick coat
- Keep your cat relaxed
- Avoid pulling the measuring tape tightly
- Recheck the measurement if your cat moves during the process
If your cat has never worn a decorative collar before, introduce it gradually rather than expecting them to wear it for a long period immediately.
You can also read our How to Get Your Cat Comfortable Wearing a Collar guide for more tips.
Measuring a Dog for a Collar
Dogs vary significantly in neck shape, even when they are similar in weight.
A small but stocky dog may have a wider neck than a taller dog of similar body weight.
For this reason, avoid choosing a size based only on breed or weight.
Measure the area where the collar will actually sit and compare the result with the product size chart.
For dogs with very thick fur, make sure you are measuring close enough to the neck to avoid accidentally choosing a size that is much too large.
What If Your Pet Is Between Two Sizes?
Sometimes your pet’s neck measurement may fall close to the limit between two available sizes.
In this situation, do not automatically choose based on the letter size alone.
Instead, consider:
- Your pet’s exact neck measurement
- The adjustment range shown on the product page
- Your pet’s coat thickness
- Whether the collar will be worn over thick fur
- The intended style and positioning of the collar
When in doubt, use the specific size chart provided for the collar you are considering, as sizing can vary slightly between designs.
Measure Twice Before Ordering
Pets move.
Measuring tapes move.
And thick fur can sometimes make the first measurement inaccurate.
For that reason, we recommend measuring your pet at least twice before ordering.
If the two measurements are noticeably different, wait until your pet is relaxed and measure again.
A few extra seconds now can help you choose a much better fit.
Consider Fur Length and Coat Changes
Your pet’s coat can also affect how a collar fits.
Long-haired cats and dogs may need slightly different positioning than short-haired pets. Some breeds also develop noticeably thicker coats during colder seasons.
When measuring, focus on the actual neck while still considering how the collar will sit naturally over the coat.
The goal is not to flatten the fur completely, but also not to measure only the outer volume of a fluffy coat.
Decorative Collars and Special Moments
Decorative collars can be a beautiful way to include your pet in birthdays, family photos, holidays, celebrations, and other meaningful moments.
Because these designs may include crystals, decorative details, chains, or statement elements, they should be chosen with both appearance and comfort in mind.
Always check the collar before use and make sure your pet is comfortable wearing it.
For highly decorative styles, supervised wear is a sensible choice, especially during active play or unfamiliar situations.
Before Choosing Your SUITSWE Collar
Before ordering a SUITSWE collar:
- Measure your pet’s neck at the natural collar position.
- Record the measurement.
- Compare it with the size guide on the product page.
- Consider your pet’s fur thickness and preferred fit.
- Recheck the measurement before selecting your size.
Our collars are designed to bring together distinctive decorative details and thoughtful styling for the pets who are part of life’s most memorable moments.
The best look always begins with the right fit.
Find the Right Fit for Your Fur Baby
Every pet has their own proportions, personality, and style.
Taking the time to measure carefully helps you choose a collar that looks more natural, feels more comfortable, and complements your pet beautifully.
Explore SUITSWE collars and check the size guide on each product page before choosing your size.