Dog Breed Size Chart
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DOG BREED SIZE Caluculation

 

 



Breed Size Adult Classification

All dogs are classified as an Adult dog at different points in their life. The largest distinction in when this occurs depends mostly on their breed.

Use our handy list below to find an approximation for your dog's age when they are now deemed an adult dog. 



TOY
Dog becomes adult at approx. 6 - 9 months

 

  • Affenpinscher
  • Australian Silky Terrier
  • Australian Terrier
  • Bichon Frise
  • Chihuahua
  • Chinese Crested
  • Dachshund (miniature)
  • English Toy Terrier
  • German Spitz (small)
  • Griffon
  • Italian Greyhound
  • Japanese Chin
  • King Charles Spaniel
  • Lowchen
  • Maltese Terrier
  • Norfolk Terrier
  • Norwich Terrier
  • Papillon
  • Phalene
  • Pekeingese
  • Pinscher (miniature)
  • Poodle (toy)
  • Pomeranian
  • Schipperke
  • Shih Tzu
  • Tibetan Spaniel
  • Yorkshire Terrier

SMALL

Dog becomes adult at approx. 9 - 12 months

  • American Cocker Spaniel
  • Basenji
  • Bedlington Terrier
  • Border Terrier
  • Boston Terrier
  • Cairn Terrier
  • Cavalier King Charles Spaniel
  • Dandie Dinmont Terrier
  • Fox Terrier
  • French Bulldog
  • Jack Russell Terrier
  • Japanese Spitz
  • Lakeland Terrier
  • Lhasa Apso
  • Manchester Terrier
  • Poodle (miniature)
  • Pug
  • Schnauzer (miniature)
  • Scottish Terrier
  • Sealyham Terrier
  • Shetland Sheepdog
  • Tibetan Terrier
  • Welsh Terrier
  • West Highland White Terrier

 MEDIUM

Dog becomes adult at approx. 12 - 15 months

  • American Water Spaniel
  • Australian Kelpie/Cattle Dog
  • Basset Petit Griffon Vendeen
  • Beagle
  • Border Collie
  • Brittany Spaniel
  • Bull Terrier
  • Canaan dog
  • Cocker Spaniel (English)
  • Collie (rough/smooth/bearded)
  • Dachshund (standard)
  • Elkhound
  • English Springer Spaniel
  • Field Spaniel
  • Finnish Spitz
  • Foxhound
  • Glenn of Imaal Terrier
  • Irish Terrier
  • Keeshound
  • Kerry Blue Terrier
  • Norwegian Buhund
  • Pharaoh Hound
  • Pinscher
  • Portuguese Water Dog
  • Puli
  • Saluki
  • Samoyed
  • Schnauzer
  • Shar-Pei
  • Sheba Inu
  • Siberian Husky
  • Skye Terrier
  • Soft Coated Wheaten Terrier
  • Staffordshire Bull Terrier
  • Sussex Spaniel
  • Welsh Corgi (Pembroke/Cardigan)
  • Welsh Springer Spaniel
  • Whippet 

LARGE

Dog becomes adult at approx. 15 - 20 months

  • Afghan Hound
  • Airedale
  • Alaskan Malamute
  • Basset Hound
  • Belgain Shepherd Dog
  • Bernese Mountain Dog
  • Borzoi
  • Bouvier Des Flandres
  • Boxer
  • Briard
  • Bulldog
  • Chesapeake Bay Retriever
  • Chow Chow
  • Clumber Spaniel
  • Curly-Coated Retriever
  • Dalmatian
  • Deerhound
  • Doberman
  • English Setter
  • Eskimo Dog
  • Estrela Mountain Dog
  • Flat-Coated Retriever
  • German Shepherd Dog
  • Golden Retriever
  • Gordon Setter
  • Greyhound
  • Hovawart
  • Hungarian Vizsla
  • Ibizan Hound
  • Irish Setter
  • Irish Water Spaniel
  • Italian Spinone
  • Japanese Akita
  • Labrador Retriever
  • Maremma Sheepdog
  • Munsterlander (large)
  • Old English Sheepdog
  • Otterhound
  • Pointer
  • Poodle (standard)
  • Schnauzer (giant)
  • Rhodesian Ridgeback
  • Rottweiler
  • Weimaraner

GIANT

Dog becomes adult at approx. 20 months

  • Anatolian Shepherd Dog
  • Bloodhound
  • Bullmastiff
  • Great Dane
  • Irish Wolfhound
  • Komondor
  • Leonberger
  • Mastiff
  • Neapolitan Mastiff
  • Newfoundland
  • Pyrenean Mountain Dog
  • St. Bernard