How To Measure Your Dogs Collar


It is recommended to use sewing tape measure or use a string and ruler. In some cases a construction tape measure may be used but it may not be perfectly accurate. If you are using a string then be sure to measure the string against a ruler or tape measure when its fully stretched out.

Simply take the measurement of your dog’s exact neck circumference in inches. Pull the tape measure snug but not tight. When the collar is on the neck it should allow you to one or two fingers (larger hands one, smaller hands two) under a properly fitting dog collar. This may also depend on your dogs fur, for example, in the photo below this dog has a lots of fur so one finger is sufficient, on a dog who has a short coat we suggest two fingers.

dog collars

A dog collar should not be tight around your dogs neck, therefore, it will not be the exact measurement of your dogs neck. For safety reasons; so it does not snag on anything, or come off it should not be too lose either.

Roman Dog leather collars:

  • belt-style buckles with four holes for adjustable sizing
  • collar size is based on the second hole
  • each hole is 1″ apart



To get the most accurate size collar, measure the center of the neck a with a sewing tape measure. The tape measurement should be snug, but not tight. Make sure there is about two fingers space between the collar and your dog’s neck. If you do not have a tape measure, you can use a piece of string and measure it with a stick ruler. You can also use your current dog collar and measure from the end of the buckle to the hole currently being used.

We recommend adding an 2 inches to the neck measurement. The two inches accommodate for the extra room needed for a good fitting collar, this is equivalent to sticking two fingers as most do when measure a collar.

For example: When using this method to measure do not put two fingers to add room like some methods you may read. Example: If your dogs measured collar size is 19 inches, then the size would be 21 inches (Large Size)

Our collars are measured from the end of the buckle to the last hole. For example, in a size Large collar; the first hole is at 20″, 2nd hole is at 21″, 3rd hole is at 22″, and the 4th hole is at 23″.


Medium 17-20”

Large 20-23”

X-Large 23-26”

XX-Large 23-29”


Width Matters

Padded collars will provide more neck support for large dog breeds making them perfect for strong dogs.

Wider collars, for example 2” wide, are also more comfortable because they reduce pressure on the neck when larger dog breeds pull.