How to Measure Your Dog for the Perfect Collar Fit
Getting the right collar fit is one of the most important things you can do for your dog's comfort and safety. Too tight and it can cause discomfort or restrict breathing. Too loose and your dog could slip out — especially during walks or moments of excitement.
Here's everything you need to know to get it right the first time.
What You'll Need
All you need is a soft measuring tape (or a piece of string and a ruler). That's it.
Step 1: Measure Your Dog's Neck
Wrap the measuring tape around the base of your dog's neck — this is where the collar will sit. You want to measure the circumference snugly, then add 2–3cm for comfort. This gives you your ideal collar size.
Quick tip: You should be able to fit two fingers comfortably between the collar and your dog's neck. If you can't, it's too tight. If you can fit more than two fingers, it's too loose.
Step 2: Check the Width
Collar width matters too. As a general guide:
- Small breeds (under 5kg): 1–1.5cm wide
- Medium breeds (5–20kg): 1.5–2.5cm wide
- Large breeds (20kg+): 2.5–4cm wide
Wider collars distribute pressure more evenly, which is especially important for strong pullers.
Step 3: Choose the Right Style
Once you have your measurements, consider what the collar will be used for:
- Everyday wear: A flat buckle collar works perfectly for most dogs.
- Night walks: An LED collar like our NightSafe LED Dog Collar keeps your dog visible after dark.
- Statement style: Our Rebel Hound Spike Collar is perfect for dogs with personality.
- Festive occasions: The JingleChain Christmas Dog Collar is a seasonal favourite.
How Often Should You Check the Fit?
Dogs grow — especially puppies. Check the collar fit every few weeks for young dogs, and every few months for adults. Weight changes, seasonal coat thickness, and general growth can all affect how a collar fits over time.
Final Thoughts
A well-fitted collar is a small thing that makes a big difference to your dog's daily comfort. Take two minutes to measure properly and you'll have a happy, safe pup every time you clip on the lead.
Browse our full range of dog collars at PetzoHub — from everyday styles to LED safety collars and everything in between.
