How to Measure Your Dog for a Collar That Fits

Quick answer

Use a soft measuring tape around the middle of your dog’s neck, add two finger widths of space for comfort, and check the collar’s adjustable range to ensure a secure but not tight fit.

Step-by-step guide to measuring your dog for a collar

1. Gather your tools: Use a soft fabric measuring tape (or a piece of string and a ruler). Have the dog stand in a relaxed position. Do not use a metal tape; it can be uncomfortable and inaccurate.
2. Measure the neck circumference: Wrap the tape around the middle of your dog’s neck, just behind the ears and where the collar normally sits. Keep it snug but not tight—you should be able to slide one finger between the tape and the neck. Common mistake: measuring too high or too low on the neck, which leads to a collar that rides up or slips off.
3. Add two finger widths for comfort: After noting the measurement, add about two finger widths (roughly 1–2 inches depending on dog size) to allow for breathing room and movement. This is your target collar size. For puppies or growing dogs, check the fit every few weeks and adjust or replace the collar as needed.
4. Check the collar’s adjustable range: Compare your measurement to the collar’s listed size range. An adjustable dog collar should have several holes or belt loops so you can fine-tune the fit. The collar should be snug enough that it doesn’t slide over the head, but loose enough to fit two fingers underneath. Avoid buying a collar that you have to use the very last hole—it may be too small if the dog gains weight or the material stretches.
5. Test the fit during activity: After putting on the collar, let your dog walk, run, and sit. The collar should stay in place without twisting or causing the dog to paw at it. Recheck after 15–20 minutes of wear. If the collar leaves marks or the dog scratches persistently, it is too tight—loosen or size up.

Products that help with proper fit

• Boutique Series Adjustable Designer Leather Dog Collar: The Boutique Series Adjustable Designer Leather Dog Collar is made of high-grade microfiber leather with adjustable belt loops and a golden-alloy ring connector. The adjustable belt loops let you fine-tune the fit as leather softens, so you can maintain comfort over time.

  

• Degree Dual Sided Comfortable and Breathable Adjustable Mesh Dog: The Degree Dual Sided Comfortable and Breathable Adjustable Mesh Dog Collar uses a soft micro-mesh body that places less stress along the neck area. Its breathable mesh reduces irritation, making it a good choice for dogs that need a gentle, consistent fit without stretching.