Size Guide
DOGLOC collar measurements
| Size | Small | Medium | Large |
| Neck Circumference (in) | 8.9 - 11.5" | 12.0 - 14.6" | 15.0 - 17.5" |
| Neck Circumference (mm) | 227 - 292mm | 305 - 370mm | 381 - 445mm |
Millimetres (mm)
Inches (")
🐾 Breed Guide by Collar Size (Guide Only)
Breed examples are indicative only. Neck size can vary significantly within breeds.
Always measure your dog’s neck using the instructions below, and compare it to the measurements above before purchasing.
Small collar:
Neck circumference: 8.9 – 11.5 in (227 – 292 mm)
Typically suits small dogs with slimmer necks.
Common breeds that often fit a Small:
- Cavoodle
- Toy Poodle
- Maltese
- Yorkshire Terrier
- Mini Dachshund
- Pomeranian
💡 Fluffy coats can make dogs look larger — measure firmly against the neck.
Medium collar:
Neck circumference: 12.0 – 14.6 in (305 – 370 mm)
Typically suits medium-sized dogs or stockier small breeds.
Common breeds that often fit a Medium:
- Beagle
- Cocker Spaniel
- French Bulldog
- Mini Labradoodle
- Mini Groodle
- Border Collie
- Small Staffy
💡 This is our most popular size.
Large collar: (coming soon!)
Neck circumference: 15.0 – 17.5 in (381 – 445 mm)
Typically suits large dogs with broader necks.
Common breeds that often fit a Large:
- Labrador Retriever
- Golden Retriever
- Standard Labradoodle / Groodle
- German Shorthaired Pointer
- Standard Poodle
- Boxer
💡 If your dog is still growing or sits at the top end of a size range, sizing up is usually best.
Still unsure?
If your dog is between sizes, we recommend choosing the larger size for comfort and adjustability. Need help? Contact us with your dog’s neck measurement and breed, and we’ll help you choose the best fit.
Can I return it if I choose the wrong size?
Yes! We offer 90 day returns on all our products, so if its not right, you can send it back for a full refund. Plus, if you choose our
How to choose the right collar size for your dog.
Option 1: Measure your dog’s current collar
- Lay your dog’s collar flat.
- Use a ruler or a flexible measuring tape (such as a fabric or sewing tape) to measure from the start of the leather/fabric at the buckle end to the middle of the hole where the buckle is usually fastened.
Option 2: Measure your dog’s neck (preferred)
- Wrap a flexible measuring tape snugly around the widest part of your dog’s neck. If you don’t have one, you can use a piece of string or ribbon, then measure the length with a ruler or non-flexible tape.
- The collar should fit tightly enough that it can’t slip over your dog’s head, but not so tight that it restricts breathing or causes discomfort. A good rule of thumb is to ensure you can comfortably fit two fingers (your index and middle fingers) between the collar and your dog’s neck.