Dog Age Converter: Calculate Dog Years to Human Years

Welcome to our free Dog Age Converter! Ever wondered how old your dog is in human years? Or how old you’d be in dog years? Use our tool below to find out!

Dog Age Calculator

Result:

How Do Dog Years Work?

Contrary to the old "1 dog year = 7 human years" myth, a dog’s aging process depends on its size and breed. Small dogs tend to live longer (up to 15-20 years), while giant breeds may only live 7-10 years. The first year of a dog’s life is roughly equivalent to 15 human years, the second year adds about 9, and after that, it varies by size. Our calculator uses this science-backed method to give you accurate results!

Fun Facts About Dog Aging

  • The oldest recorded dog, an Australian Cattle Dog named Bluey, lived to be 29 years old!
  • Small breeds like Chihuahuas often outlive larger breeds like Great Danes by nearly double the lifespan.
  • Dogs reach "senior" status around 7-10 years, depending on size—time to stock up on cozy beds and joint supplements!
  • A dog’s sense of smell stays sharp even in old age, making them lifelong sniffers!

Tips for Caring for an Aging Dog

As dogs age, their needs change. Here are some expert tips to keep them happy and healthy:

  1. Regular Vet Visits: Catch health issues early with annual checkups.
  2. Nutrition: Switch to senior dog food to support joint health and digestion.
  3. Exercise: Keep them active with gentle walks tailored to their energy levels.
  4. Comfort: Provide soft bedding and a warm environment for aging joints.

Why Dog Size Matters

Larger dogs age faster due to their higher metabolic demands. A 5-year-old Great Dane might be considered a senior, while a 5-year-old Jack Russell Terrier is still in its prime. Our calculator adjusts for this to give you a more accurate result, whether you’re converting dog years to human years or vice versa!

Small Breeds (Generally Live Longer, 12–18 years)

  1. Chihuahua – 14–17 years
  2. Toy Poodle – 14–16 years
  3. Yorkshire Terrier – 13–16 years
  4. Dachshund – 12–16 years
  5. Pomeranian – 12–16 years
  6. Miniature Schnauzer – 12–15 years
  7. Shih Tzu – 12–15 years
  8. Papillon – 13–16 years
  9. Maltese – 13–16 years
  10. Pekingese – 12–14 years

Medium Breeds (Average Lifespan, 10–15 years)

  1. Cocker Spaniel – 12–15 years
  2. Beagle – 12–15 years
  3. Border Collie – 12–15 years
  4. French Bulldog – 10–14 years
  5. Boston Terrier – 11–14 years
  6. Bulldog – 8–12 years
  7. Basset Hound – 10–12 years
  8. Whippet – 12–15 years
  9. Australian Shepherd – 12–15 years
  10. Corgi (Pembroke/Cardigan) – 12–15 years

Large Breeds (Shorter Lifespan, 8–12 years)

  1. Labrador Retriever – 10–12 years
  2. Golden Retriever – 10–12 years
  3. German Shepherd – 9–13 years
  4. Doberman Pinscher – 10–13 years
  5. Boxer – 9–12 years
  6. Standard Poodle – 10–14 years
  7. Dalmatian – 11–13 years
  8. Siberian Husky – 12–15 years
  9. Weimaraner – 11–14 years
  10. Chesapeake Bay Retriever – 10–13 years

Giant Breeds (Shortest Lifespan, 6–10 years)

  1. Great Dane – 7–10 years
  2. Mastiff – 6–10 years
  3. Saint Bernard – 8–10 years
  4. Newfoundland – 8–10 years
  5. Irish Wolfhound – 6–8 years
  6. Bernese Mountain Dog – 7–10 years
  7. Leonberger – 8–10 years
  8. Great Pyrenees – 10–12 years
  9. Alaskan Malamute – 10–12 years
  10. Rottweiler – 8–12 years

Mixed Breeds & Lifespan

Crossbreed – Generally longer than purebreds due to genetic diversity

Mixed Breed Dogs – Typically 10–16 years (depends on size & genetics)