How to Measure Your Small Dog for a Collar: A Complete Size Guide
The perfect collar starts with the right fit.
When you have a small dog, even a little difference in collar size matters. A collar that's too tight can cause discomfort, while one that's too loose may slip over your dog's head.
Whether you have a Chihuahua, Yorkshire Terrier, Toy Poodle, Maltese, or Pomeranian, finding the right fit starts with one simple measurement.
In this guide, we'll show you how to measure your small dog's neck, choose the correct collar size, and make sure their new collar fits comfortably and securely.
Explore our Luxury Dog Collar Collection, designed with small dogs in mind.
Why Collar Size Matters for Small Dogs
Small dogs have delicate necks, so choosing the right collar is especially important.
A collar that fits a larger dog perfectly might be too wide, heavy, or loose for a miniature breed.
For dogs weighing up to 7 kg (15 lbs), the goal is to find a collar that stays securely in place without putting unnecessary pressure on the neck.
That's why measuring your dog's neck is much more reliable than choosing a collar based on breed or weight alone.
What You'll Need
You only need a few things:
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A soft measuring tape
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A treat to help your dog stay still
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Your dog's neck measurement
No measuring tape? Use a piece of string and measure it afterward with a ruler.
Step 1: Measure Your Small Dog's Neck
Wrap the measuring tape around your dog's neck where the collar will naturally sit.
Keep the tape flat against the fur without pulling it too tight.
Your dog should be standing or sitting naturally while you measure.
For small breeds like Chihuahuas and Yorkshire Terriers, it's especially important to measure carefully. Even a small difference can affect the fit.
Step 2: Check the Fit With One Finger
For very small dogs, start by checking whether one finger fits comfortably between the measuring tape and your dog's neck.
The tape should feel snug but not tight.
This is a useful starting point for miniature breeds, but finger width varies. The most important thing is that the collar doesn't restrict breathing, rub against the skin, or slip over the dog's head.
Write down the measurement in inches or centimeters.
Step 3: Choose the Right Collar Size
Once you have your dog's neck measurement, compare it with the Tesoro Collezione size chart.
Tesoro Collezione Collar Size Chart
Important: If your dog's measurement falls between two sizes or within an overlapping range, don't automatically choose the larger one.
For miniature breeds, an oversized collar may slip over the head.
Instead, check the adjustment range and choose a size that allows a comfortable, secure fit. If neither size fits properly, consider a different collar size or design.
Remember that collar sizing varies between brands, so always use your dog's actual neck measurement.
Shop Tesoro Leather Dog Collars
What Makes Tesoro Collars Different?
At Tesoro Collezione, we believe small dogs deserve accessories that combine everyday comfort with timeless style.
Our collars are crafted from premium genuine nappa leather, chosen for its soft feel and refined appearance.
Each collar features:
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Soft genuine nappa leather for everyday comfort
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Adjustable sizing to help achieve a secure fit
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A complimentary personalized leather tag with your dog's initial
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Six signature colors, including Stone, Sand, Onyx, Deep Burgundy, Aquamarine, and Burnt Amber
Before each walk, make sure the collar fastening is fully secured and the hardware shows no signs of damage.
Looking for a timeless neutral? Explore our Stone Leather Dog Collar.
Or discover the full Luxury Collar Collection to find a color that matches your dog's personality.
How to Check Your Small Dog's Collar Fit
Once your new collar arrives, put it on and check how it sits.
A properly fitted collar should:
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Stay comfortably in place without sliding excessively
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Allow approximately one finger underneath for a very small dog, without squeezing
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Not press into the neck or leave irritation marks
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Not slip over the dog's head when gently checked
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Allow your dog to move, breathe, and swallow naturally
Check the fit again after your dog has worn the collar for a little while, especially during the first few walks.
For dogs that pull on the leash, a well-fitted harness can be a more comfortable option because it distributes pressure across the chest rather than concentrating it on the neck.
Explore our Luxury Dog Harnesses.
Common Collar Measuring Mistakes
Measuring Too Tightly
Don't pull the measuring tape tightly against your dog's neck. The collar needs to allow comfortable movement and breathing.
Leaving Too Much Space
A loose collar isn't necessarily more comfortable.
For miniature breeds, a collar that's too loose may slip over the head, especially if your dog gets startled or pulls backward.
Choosing a Size Based Only on Breed
Not all Chihuahuas or Toy Poodles have the same neck size.
Even dogs of the same breed and similar weight can have different measurements.
Always measure your individual dog.
Measuring an Old Collar
An old collar may have stretched or come from a brand with different sizing.
For the most accurate result, measure your dog's neck directly.
Measuring Small Dogs With Thick or Fluffy Coats
Some small breeds, especially Pomeranians and long-haired Maltese, have thick or fluffy coats.
When measuring, keep the fur in its natural state and avoid pulling the tape so tightly that it compresses the coat completely.
Make sure the collar sits securely beneath the outer layers of fur without pressing into the skin.
If your dog gets a significant haircut or their coat changes between seasons, check the collar fit again.
Choosing a Collar for a Small Puppy
Puppies grow quickly, and even a small change in neck circumference can affect collar fit.
If you're choosing a collar for a Chihuahua, Toy Poodle, or Yorkshire Terrier puppy, keep these tips in mind:
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Measure your puppy's neck before purchasing.
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Choose a lightweight, adjustable collar that fits securely now.
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Check the fit frequently as your puppy grows.
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Never buy an oversized collar just so your puppy can grow into it.
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Replace the collar when it no longer fits comfortably within its adjustment range.
An adjustable collar can offer flexibility, but safety and comfort should always come before leaving extra room for growth.
If your puppy is too small for the available sizes, wait until you can find a collar that fits properly.
Frequently Asked Questions
What collar size is best for a Chihuahua?
Chihuahuas vary in size, so there isn't one collar size that fits them all. Measure your dog's neck and compare the result with the Tesoro Collezione size chart. For very small Chihuahuas, check the minimum neck measurement carefully.
Should I choose a larger collar if my dog is between sizes?
Not automatically. For small dogs, a collar that's too loose may slip off. Choose a size that can be adjusted securely to your dog's actual neck measurement.
How tight should a small dog's collar be?
For a very small dog, one finger between the collar and neck can be a useful initial check. The collar should not press into the skin, restrict breathing, or slip over the head.
Can small dogs wear leather collars?
Yes. A properly fitted leather collar can be a comfortable everyday accessory for a small dog. Look for soft materials, appropriate collar width, and secure fastening.
How often should I check my puppy's collar size?
Check frequently while your puppy is growing, ideally at least once a week and whenever you notice changes in fit.
Is a collar or harness better for a small dog?
Both have their uses. Collars are convenient for identification, while a properly fitted harness is often preferable for walks, especially for dogs that pull or have sensitive necks.
Find the Perfect Collar for Your Small Dog
Finding the right collar doesn't have to be complicated.
With one accurate neck measurement, the right size chart, and a careful fit check, you can choose a collar that keeps your small dog comfortable and secure.
At Tesoro Collezione, we believe everyday essentials should feel just as special as the dogs who wear them.
Discover our Luxury Leather Dog Collar Collection and find your dog's perfect fit.
Complete your walking set with matching Tesoro accessories: