Measuring for your dog for a collar:

• Ensure your dog is standing still
• Measure using a fabric tape measure or string
• Measure the neck line at the base of the neck
• You should then be able to fit 1 to 2 fingers inside the collar, for your dog to be comfortable

Dog Breeds
Dog's Neck Size - the sizes below indicate the size of the dog's neck. We have allowed a small amount of space between the neck size and collar length.

Extra Small: 23-32 cm / 9-12.5 in
Bichon Frise, Chihuahua (Miniature), Chinese Crested, Havanese, Italian Greyhound, Pinscher (Miniature), Pomeranian (Miniature), Toy Poodle, Yorkshire Terrier.
 
Small: 32-38cm / 12.5-15in
Beagle, Boston Terrier, Brittany Spaniel, Bolognese, Cairn Terrier, Cavalier King Charles Spaniel, Corgi, Dachshund, Fox Terrier, French Bulldog, Jack Russell, Japanese Chin, Lhasa Apso, Maltese, Miniature American Eskimo, Miniature Australian Shepherd, Frenchie, French Bulldog, Miniature Labradoodle, Miniature Poodle, Miniature Schnauzer, Pekingese, Pug, Pomeranian, Rat Terrier, Scottish Terrier, Shetland Sheepdog, ShihTzu, Silky Terrier, Welsh Corgi, West Highland Terrier, Whippet. 
 
Medium: 36-44cm / 14.5-17.5in
Afghan Hound, Airedale Terrier, American Pitt Bull Terrier, Borzoi, Basset, Bearded Collie, Berger de Brie, Bichon Frise, Border Collie, Boston Terrier, Cavapoo, Chinese Shar-Pei, Cocker Spaniel, Dalmatian, Flat Coated Retriever, Frenchie, French Bulldog, German Longhaired Pointer, German Shorthaired Pointer, Greyhound, Labradoodle, Miniature Bull Terrier, Pitt Bull Terrier, Poodle (Standard), Saluki, Schnauzer Standard, Scottish Terrier, Spaniel (Springer, English, Sussex)-S/M, Spaniel (Springer, Welsh), Staffordshire Terrier, Vizsla, Welsh Corgi, Wolf Spitz. 
 
Large: 42-60cm / 16.5-24in
Akita, American Eskimo, Alaskan Malamute, American Staffordshire Terrier, Australian Kelpie, Australian Shepherd, Berger de Brie, Borzoi, Bearded Collie, Bloodhound, Boxer, Bull Dog American, Bull Mastiff (small), Caucasian Shepherd, Collie, Doberman, English Setter, English Mastiff, German Longhaired Pointer, German Shepherd (small), German Shorthaired Pointer, Golden Retriever, Gordon Setter, Irish Wolfhound, Irish Setter, Keeshond, Labrador Retriever, Munsterlander (Small / Large), Norwegian Elkhound, Old English Sheepdog, Pitt Bull, Pointer, Rhodesian Ridgeback, Rottweiler, Schnauzer Giant, Spaniel (Springer, English, Sussex-Large), Staffordshire Bull Terrier, Vizsla, Wheaten Terrier, Weimaraner, Wolf Spitz.