Australian Shepherd age in human years
How old is your Australian Shepherd in human years? Enter their age to see it, along with the life stage they are in and when the next one begins.
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How old is my Australian Shepherd in human years?
Use the calculator above with your Australian Shepherd's current age (in years or by date of birth). The result follows the AAHA non-linear curve adjusted for medium-breed aging speed.
When is my Australian Shepherd considered a senior?
From about 10.5 years. Vets count a dog as senior in the last quarter of its expected lifespan (AAHA), and for the Australian Shepherd that comes from the breed's median lifespan in a 2024 study of UK dogs. Your vet may suggest check-ups twice a year from then on.