How to measure your dogs neck for a new collar

The most convenient way to measure your dog’s neck is to measure their neck at the point where their collar usually sits.
When measuring your dog for their new dog collar, you will first need a flexible tape measure. Wrap the tape measure around the widest part of your dog's neck. Allow enough free space between the collar and your dog by placing two fingers under the tape measure and lay your fingers flat against your dog's neck.
Then attempt to slip the tape measure 'collar' over your dog's head. If it cannot be easily slipped over your dog's head, this indicates it is the right size, and your dog will not be at risk of slipping his collar and getting loose.