How to Measure Your Dog for a Collar: A Dog Collar Size Guide
You are walking near a busy road. Your dog suddenly pulls backwards in panic. If their collar is poorly fitted, it slips straight over their ears. You lose control instantly.
This is the kind of danger that can occur just because of your dog's size. When you upgrade your dog accessories, specifically moving to natural hides, precision is a strict requirement. A leather dog collar is not a stretchy piece of disposable fabric. It is a structural tool. If it fits too tightly, it creates severe friction against the dog's trachea. If it sits too loosely, it becomes a severe safety hazard.
Here is exactly how to measure your dog's neck to ensure absolute safety and a frictionless, customised dog collar fit.
The Artisan Toolkit - Prepare to Measure
Do not use a stiff metal construction tape measure. It will not wrap flush against the dog's neck, resulting in entirely inaccurate numbers. Gather these items before you begin:
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A soft, flexible tailor’s measuring tape.
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A piece of string and a ruler (if you do not own a soft measuring tape).
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A calm environment where your dog is standing squarely on all four legs.
Step 1: Choose Your Collar Type
Before you take a measurement, you must know what style of collar you are buying. Different designs sit on different parts of the neck.
A standard flat collar fits lower on the neck, near the base. A martingale collar fits higher, just behind the ears, and is designed specifically to prevent narrow-headed dogs from backing out of their gear. Decide on your structural needs first.
Bonus Tip - Factor in the hardware weight. Heavy, solid brass buckles require a snugger fit to prevent the collar from sagging heavily against the throat.
Step 2: Sizing the Cervical Spine (Neck Measurement)
Ensure your dog is standing up. Do not measure a dog that is lying down, as the skin and muscles shift, giving you a falsely large reading.
Wrap the soft measuring tape around the exact centre of the neck. Pull it flush against the fur. Do not pull it tight enough to compress the skin. Take note of this exact number.
Bonus Tip: The 2-Finger Rule is mandatory. Slip two of your fingers flat between the measuring tape and the dog's neck. This adds the exact amount of breathing room required for daily comfort.
Also Read: - Best Leather Dog Collar for Small Dogs
Step 3: Using a Dog Collar Size Guide Properly
Take your final measurement and compare it directly to the manufacturer's specific dog collar size guide. Never assume a "Medium" at one store matches a "Medium" at another.
Check the sizing bracket. If your dog measures 16 inches, look for a collar where 16 inches is the middle hole. You want adjustability in both directions. If your dog gains weight or grows a thick winter coat, you need room to expand.
Bonus Tip: Leather naturally softens over time. If your dog's measurement falls exactly between 2 sizes on a sizing chart, select the smaller size. The organic hide will yield slightly to the shape of the neck after a few weeks of use.
Premium Leather Dog Collars Collection of Petsleather -
You cannot achieve a perfect fit with cheap, stiff materials. Petsleather collection of premium dog collars is made from top-grain hides designed for safety and comfort. We hand-burnish the edges of every strap to ensure a smooth fit and finish. We punch exact, reinforced sizing holes so the collar locks securely.
Pairing a precise measurement with our Canadian-crafted leather guarantees your dog's morning walk, hiking and city walks in total comfort. If you are looking for gear that moves perfectly with their body and becomes a part of their body, the Petleather leather dog collar collection is worth considering.
FAQs
How do I know what size collar to get for my dog?
Measure the centre of their neck with a soft tape measure, then add enough space to slide 2 fingers flat underneath. Compare that final number to the specific brand’s sizing chart.
How to calculate collar size?
Take the exact neck circumference and add roughly 5cm (or 2 inches).
Is collar size in inches or cm?
Most premium brands list their sizing charts in both inches and centimetres.
Are leather dog collars good for dogs?
Yes. Top-grain leather is naturally hypoallergenic and highly breathable. Unlike synthetic dog accessories, organic leather softens and moulds exactly to the dog's neck.
How to measure a leather dog collar?
If you are measuring an old collar to buy a new one, lay the collar flat on a table. Measure from the centre of the buckle pin to the specific hole you currently use. Do not measure end-to-end.





