Dog years are multiplied by seven to get a human age, as a dog lifespan is a seventh of a persons. Converting dog years to human years depends on various factors as toy, small, medium, large and giant dogs mature differently, which is why dogs up to 50 lbs. can live longer than pups up to 100 lbs.
Experts agree, however, that the level of maturity a dog reaches in the first two years is similar to that of a 14-year-old human, but that is where the similarity ends. The age of a pup in dog years to human years depends on the following:
- Breed
- Size
- Weight
- Activity level
- Diet
- Lifestyle
- Health
- Lifespan
Comparing age: Dog years vs Human years
While most pet parents have been calculating their pup’s dog to human years for the longest time, the method has no basis of truth and human years to dog years conversion is mostly just for entertainment. Just for fun, take a look at the dog years converter and estimate how old the age of a toy, small, medium, large and giant dog breed is in human years.
Toy size dogs: Up to 10 lbs.
| Breeds | Dog Age | Human Age |
Chihuahua Japanese Chin Maltese Manchester Terrier Papillion Pomeranian Toy Fox Terrier Yorkshire Terrier | 0-9 mths | Younger than 15 |
| 10-11 mths | Younger than 15 | |
| 1 | 15 | |
| 2 | 23 | |
| 3 | 28 | |
| 4 | 31 | |
| 5 | 35 | |
| 6 | 38 | |
| 7 | 42 | |
| 8 | 45 | |
| 9 | 49 | |
| 10 | 52 | |
| 11 | 56 | |
| 12 | 59 | |
| 13 | 63 | |
| 14 | 66 | |
| 15 | 70 | |
| 16 | 74 |
*Source: Pro Plan Dog Age Calculator
Small size dogs: Up to 20 lbs.
| Breeds | Dog Age | Human Age |
Affenpinscher Australian Terrier Bichon Frise Border Terrier Boston Terrier Brussels Griffon Cairn Terrier Cavalier King Charles Spaniel Chinese Crested Dachshund Dandie Dinmont Terrier English Toy Spaniel French Bulldog Havanese Italian Greyhound Lakeland Terrier Lhasa Apso Löwchen Miniature Pinscher Miniature Schnauzer Norfolk Terrier Norwich Terrier Pekingese Pug Schipperke Scottish Terrier Shih Tzu Silky Terrier Skye Terrier Tibetan Spaniel West Highland White Terrier Xoloitzcuintli | 0-9 mths | Younger than 15 |
| 10-11 mths | Younger than 15 | |
| 1 | 15 | |
| 2 | 23 | |
| 3 | 28 | |
| 4 | 32 | |
| 5 | 36 | |
| 6 | 40 | |
| 7 | 44 | |
| 8 | 48 | |
| 9 | 52 | |
| 10 | 56 | |
| 11 | 60 | |
| 12 | 64 | |
| 13 | 68 | |
| 14 | 72 | |
| 15 | 76 | |
| 16 | 80 | |
| 17 | 84 | |
| 18 | 88 | |
| 19 | 92 | |
| 20 | 96 |
*Source: Pro Plan Dog Age Calculator
Medium size dogs: Up to 50 lbs.
| Breeds | Dog Age | Human Age |
Airedale Terrier American Eskimo Dog American Foxhound American Water Spaniel Australian Cattle Dog Basenji Beagle Bearded Collie Bedlington Terrier Border Collie Brittany Bull Terrier Bulldog Canaan Dog Cardigan Welsh Corgi Chinese Shar-Pei Dachshund English co*cker Spaniel English Springer Spaniel Field Spaniel Finnish Spitz Irish Terrier Keeshond Kerry Blue Terrier Manchester Terrier Miniature Bull Terrier Pembroke Welsh Corgi Petit Basset Griffon Vendeen Puli Shetland Sheepdog Shiba Inu Soft Coated Wheaten Terrier Staffordshire Bull Terrier Standard Schnauzer Sussex Spaniel Tibetan Terrier Welsh Terrier Whippet Wire Fox Terrier | 0-9 mths | Younger than 15 |
| 10-11 mths | Younger than 15 | |
| 1 | 15 | |
| 2 | 24 | |
| 3 | 29 | |
| 4 | 34 | |
| 5 | 38 | |
| 6 | 42 | |
| 7 | 47 | |
| 8 | 51 | |
| 9 | 56 | |
| 10 | 60 | |
| 11 | 65 | |
| 12 | 69 | |
| 13 | 74 | |
| 14 | 78 | |
| 15 | 83 | |
| 16 | 87 |
*Source: Pro Plan Dog Age Calculator
Large size dogs: 50+ lbs.
| Breeds | Dog Age | Human Age |
Afghan Hound Airedale Terrier Akita Alaskan Malamute American Staffordshire Terrier Australian Shepherd Basset Hound Bearded Collie Belgian Malinois Belgian Sheepdog Belgian Tervuren Bernese Mountain Dog Black and Tan Coonhound Bloodhound Borzoi Bouvier des Flandres Boxer Briard Bullmastiff Chesapeake Bay Retriever Chow Chow Clumber Spaniel Collie Curly-Coated Retriever Dalmatian English Foxhound English Setter Flat-Coated Retriever German Shepherd Dog German Shorthaired Pointer German Wirehaired Pointer Golden Retriever Gordon Setter Greyhound Harrier Ibizan Hound Irish Setter Irish Water Spaniel Komondor Labrador Retriever Norwegian Elkhound Old English Sheepdog Otterhound Pharaoh Hound Pointer Poodle Portuguese Water Dog Rhodesian Ridgeback Saluki Samoyed Siberian Husky Spinone Italiano Vizsla Weimaraner Wirehaired Pointing Griffon | 0-9 mths | Younger than 15 |
| 10-11 mths | Younger than 15 | |
| 1 | 15 | |
| 2 | 23 | |
| 3 | 28 | |
| 4 | 31 | |
| 5 | 35 | |
| 6 | 38 | |
| 7 | 42 | |
| 8 | 45 | |
| 9 | 49 | |
| 10 | 52 | |
| 11 | 56 | |
| 12 | 59 | |
| 13 | 63 | |
| 14 | 66 | |
| 15 | 70 | |
| 16 | 74 | |
| 17 | 78 |
*Source: Pro Plan Dog Age Calculator
Giant size dogs: 100+ lbs.
| Breeds | Dog Age | Human Age |
Anatolian Shepherd Dog Bullmastiff Giant Schnauzer Great Dane Great Pyrenees Greater Swiss Mountain Dog Irish Wolfhound Kurvasz Mastiff Newfoundland Rottweiler Saint Bernard Scottish Deerhound | 0-9 mths | Younger than 15 |
| 10-11 mths | Younger than 15 | |
| 1 | 15 | |
| 2 | 23 | |
| 3 | 28 | |
| 4 | 31 | |
| 5 | 35 | |
| 6 | 38 | |
| 7 | 42 | |
| 8 | 45 | |
| 9 | 49 | |
| 10 | 52 | |
| 11 | 56 | |
| 12 | 59 | |
| 13 | 63 |
*Source: Pro Plan Dog Age Calculator
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