How to Measure Your Dog for a Collar: A Simple Guide
By Zeedog | Published: 2026-10-29
Category: How-to Guides
Learn how to measure your dog's neck accurately for a comfortable, secure collar. This step-by-step guide helps you choose the right size for your pup.
Quick answer
Measure your dog's neck with a flexible tape, add two fingers' width for comfort, and use that measurement to choose the right collar size.
Why a precise fit matters
A collar that's too tight can cause discomfort or chafing, while one that's too loose may slip off or catch on objects. Measuring your dog's neck accurately ensures a safe and comfortable fit for everyday wear.
Account for fur and growth
Dogs with thick fur may need a slightly larger size, as the collar sits over the fur. For puppies, check the fit regularly as they grow. Always re-measure before buying a new collar, especially if your dog has gained or lost weight.
Step-by-step measurement guide
- Gather your tools: Use a flexible measuring tape. If you don't have one, use a piece of string and a ruler or measuring tape. A rigid ruler alone won't work for measuring a curved neck.
- Position the tape: Place the tape around the middle of your dog's neck, where the collar naturally sits. It should be snug but not tight. Avoid measuring at the base of the neck, which is wider and will give an inaccurate size.
- Add two fingers: Slide two fingers between the tape and your dog's neck. This ensures the collar won't be too tight or too loose. If you can't fit two fingers, the collar is too tight; if you can fit more, it's too loose.
- Note the measurement: Read the measurement where the tape overlaps. This is your dog's neck size in inches or centimeters. Write it down and keep it handy for future collar purchases.
- Choose the right collar: Compare your measurement with the collar's size range. For adjustable collars, ensure your measurement falls within the range, and adjust the collar to fit snugly with two fingers' clearance. If your dog is between sizes, size up for comfort, especially for growing puppies.
- Test the fit: After putting the collar on, check that you can slide two fingers under it. Also, make sure it doesn't rotate around your dog's neck. Recheck the fit regularly, especially for puppies or dogs that may gain or lose weight.
Collar options to consider
- Reebok Suede | Collar: The Reebok Suede Collar is fully adjustable and available in 4 sizes. It can accommodate a range of neck sizes, making it a versatile choice for many dogs.

Reebok Suede | Collar - Gibson | Collar: The Gibson Collar is fully adjustable and made from durable polyester with a 4-point locking buckle. The adjustability helps achieve a snug fit, while the secure buckle provides peace of mind during walks.

Gibson | Collar - Melted | Collar: The Melted Collar is fully adjustable and features a 4-point locking system. It offers a customizable fit and extra safety, ideal for active dogs that pull or roam.


