Dog Breeds Age Calculator & Lifespan Library

four dog breeds representing small, medium, large, and giant sizes

Dog breeds don’t all age the same way. Small companions often reach their mid-teens, while giant guardians age faster. This hub brings everything together in one place: a growing library of calculators, plain-English lifespan guides, and quick care tips. Type your dog’s name into the search bar or browse by size to compare life stages across different kinds of dogs.Each breed page includes a fast dog-to-human age calculator, a clear look at life stages (puppy, young adult, adult, mature, senior), and typical lifespan ranges. Content is written in simple, skimmable sections that load quickly on phones. For official standards and background, visit the American Kennel Club breed directory. For general pet health education, see PetMD’s dog resource center. (Our pages are educational and not veterinary advice.)Use the filters below to jump to small, medium, large, or giant dogs. If you’re choosing a puppy, this library helps you understand typical lifespans, exercise needs, and aging patterns so you can plan ahead with confidence.





Small Dog Breeds

Smaller dogs often live 12–16 years. Explore the Small Dogs Breeds Page for calculators and guides.

  • Affenpinscher
  • American Eskimo Dog (Toy, Miniature)
  • Australian Terrier
  • Basenji
  • Basset Fauve de Bretagne
  • Beagle (13″)
  • Bedlington Terrier
  • Bichon Frise
  • Biewer Terrier
  • Border Terrier
  • Boston Terrier
  • Brussels Griffon
  • Cairn Terrier
  • Cavalier King Charles Spaniel
  • Cesky Terrier
  • Chihuahua
  • Chinese Crested
  • Coton de Tulear
  • Dachshund (Miniature)
  • Dandie Dinmont Terrier
  • English Toy Spaniel
  • French Bulldog
  • Havanese
  • Italian Greyhound
  • Japanese Chin
  • Lakeland Terrier
  • Lhasa Apso
  • Löwchen
  • Manchester Terrier (Toy)
  • Miniature Bull Terrier
  • Miniature Pinscher
  • Miniature Schnauzer
  • Norfolk Terrier
  • Norwich Terrier
  • Papillon
  • Pekingese
  • Pembroke Welsh Corgi
  • Petit Basset Griffon Vendéen
  • Pomeranian
  • Poodle (Toy, Miniature)
  • Pug
  • Rat Terrier (Toy)
  • Russian Toy
  • Russian Tsvetnaya Bolonka
  • Schipperke
  • Scottish Terrier
  • Sealyham Terrier
  • Shih Tzu
  • Silky Terrier
  • Skye Terrier
  • Smooth Fox Terrier
  • Tibetan Spaniel
  • Toy Fox Terrier
  • Welsh Terrier
  • West Highland White Terrier
  • Wire Fox Terrier
  • Yorkshire Terrier

Medium-Sized Dogs

Many mid-size companions live 10–14 years. See the Medium Dogs Breeds Page for calculators and care basics.

  • American Eskimo Dog (Standard)
  • American Hairless Terrier
  • American Water Spaniel
  • Australian Cattle Dog
  • Australian Shepherd (Miniature and Standard)
  • Barbet
  • Beagle (15″)
  • Belgian Laekenois
  • Belgian Malinois
  • Belgian Sheepdog
  • Belgian Tervuren
  • Bergamasco Sheepdog
  • Berger Picard
  • Boykin Spaniel
  • Brittany
  • Canaan Dog
  • Cardigan Welsh Corgi
  • Chesapeake Bay Retriever
  • Clumber Spaniel
  • Cockapoo
  • Cocker Spaniel
  • Collie (Miniature)
  • Dalmatian
  • Dutch Shepherd
  • English Cocker Spaniel
  • English Setter
  • English Springer Spaniel
  • Entlebucher Mountain Dog
  • Finnish Lapphund
  • Finnish Spitz
  • German Pinscher
  • German Shorthaired Pointer
  • German Wirehaired Pointer
  • Glen of Imaal Terrier
  • Goldador
  • Keeshond
  • Kerry Blue Terrier
  • Kooikerhondje
  • Lagotto Romagnolo
  • Miniature American Shepherd
  • Norwegian Buhund
  • Norwegian Elkhound
  • Nova Scotia Duck Tolling Retriever
  • Polish Lowland Sheepdog
  • Portuguese Podengo
  • Portuguese Water Dog
  • Pudelpointer
  • Sloughi
  • Soft Coated Wheaten Terrier
  • Spanish Water Dog
  • Spinone Italiano
  • Standard Schnauzer
  • Sussex Spaniel
  • Swedish Vallhund
  • Tibetan Terrier
  • Vizsla
  • Weimaraner
  • Whippet
  • Wirehaired Pointing Griffon
  • Wirehaired Vizsla

Large Dog Lifespan Library

Bigger dogs tend to age faster, often 8–12 years. Visit the Large Dogs Breeds Page for calculators and tips.

  • Afghan Hound
  • Airedale Terrier
  • Akita
  • Alaskan Malamute
  • American English Coonhound
  • American Foxhound
  • American Leopard Hound
  • Anatolian Shepherd Dog
  • Appenzeller Sennenhund
  • Black and Tan Coonhound
  • Black Russian Terrier
  • Bloodhound
  • Bluetick Coonhound
  • Boerboel
  • Borador
  • Border Collie
  • Borzoi
  • Boxer
  • Bull Terrier
  • Bullmastiff
  • Carolina Dog
  • Collie
  • Doberman Pinscher
  • Dogo Argentino
  • Dogue de Bordeaux
  • English Foxhound
  • German Shepherd Dog
  • Golden Retriever
  • Gordon Setter
  • Great Pyrenees
  • Greater Swiss Mountain Dog
  • Greyhound
  • Harrier
  • Ibizan Hound
  • Irish Setter
  • Irish Terrier
  • Irish Water Spaniel
  • Irish Wolfhound
  • Kuvasz
  • Labrador Retriever
  • Leonberger
  • Mastiff
  • Old English Sheepdog
  • Otterhound
  • Pharaoh Hound
  • Plott
  • Pointer
  • Redbone Coonhound
  • Rhodesian Ridgeback
  • Rottweiler
  • Saluki
  • Scottish Deerhound
  • Shetland Sheepdog
  • Shikoku
  • Siberian Husky
  • Staffordshire Bull Terrier
  • Tibetan Mastiff
  • Treeing Walker Coonhound
  • Xoloitzcuintli

Giant Dog Types & Lifespan Guide

Giant companions average about 6–10 years. Explore the Giant Dogs Breeds Page for tools and updates.

  • Bernese Mountain Dog
  • Broholmer
  • Cane Corso
  • Central Asian Shepherd Dog
  • Estrela Mountain Dog
  • Great Dane
  • Komondor
  • Neapolitan Mastiff
  • Newfoundland
  • Pyrenean Mastiff
  • Rafeiro do Alentejo
  • Saint Bernard
  • Tosa

Dog Age & Lifespan FAQ

How does the calculator work?
Year one ≈ 15 human years, year two ≈ 24, then ~5–7 human years per dog year depending on size.

Why do some dogs live longer?
Smaller frames put less strain on the body, so small companions often outlive very large ones.

What’s included on each breed page?
A quick calculator, life stages, typical lifespan, and simple care tips. Educational only—not medical advice.

Ready to start? Use search and size filters above to find your dog’s page and explore their age and lifespan.