Yorkshire Terrier Age Calculator: Dog Years to Human Years

Yorkshire Terrier age in human years

Dog years	Human years	Life stage
1	15	Adolescent
2	24	Adult
6	40	Adult
10	56	Senior begins
13	68	Senior
15	76	Geriatric

Figures based on The Royal Kennel Club's published small-breed guidance, as tabulated by Purina UK. For an exact figure, try the Dog Years calculator.

The Yorkshire Terrier is classified by The Royal Kennel Club within the smaller ageing band, typically weighing 2–3.2 kg as an adult, with a median life expectancy of around 13.3 years, according to a 2024 analysis of UK veterinary records by Dogs Trust. Originally bred in Yorkshire, England to catch rats in textile mills, the modern "Yorkie" is now one of the world's most popular companion breeds, known for its long, silky coat and feisty terrier temperament.

What this means for your Yorkshire Terrier

Yorkies are alert and often surprisingly bold for their size, forming close bonds with their owners and sometimes struggling with separation anxiety if left alone too long. Their long coat needs regular brushing to prevent matting, though many owners keep it clipped short in a "puppy cut" for easier day-to-day care as their dog ages.

The breed's small jaw makes dental crowding and periodontal disease common, so regular dental checks matter more than for larger breeds. Patellar luxation (a dislocating kneecap) and tracheal collapse — which can cause a persistent, dry "goose-honk" cough — are also worth watching for, along with portosystemic shunt, a liver condition more commonly seen in the breed.

When is a Yorkshire Terrier considered a senior?

Under The Royal Kennel Club's size-adjusted guidance, small breeds like the Yorkshire Terrier are generally considered senior from around 10 dog years old — though many Yorkies stay lively and alert well into their teens.

Related reading: Is the ×7 Rule Real? · Dog Life Stages Explained · Signs Your Dog Is Entering Its Senior Years

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