Australian Shepherd Age in Human Years: Free Calculator
Work out your Australian Shepherd age in human years. Australian Shepherds typically weigh 40–65 lb and live 12–15 years; enter your dog's age below.
An active herding breed. Size class: Large (51–100 lb (23–45 kg)). Senior from about 10 years.
Australian Shepherd key numbers
| Typical adult weight | 40–65 lb (18.1–29.5 kg) |
| Typical lifespan | 12–15 years |
| Fully grown (adult) from about | 1.5 years |
| Senior from about | 10 years (≈66 human years) |
| Human age at 15 years | ≈93 |
| Daily calories, neutered adult | 985–1417 kcal |
Australian Shepherd age in human years: year-by-year chart
| Dog age | Size-based chart | UCSD formula | Life stage |
|---|---|---|---|
| 1 | 15 | 31 | Puppy |
| 2 | 24 | 42 | Adult |
| 3 | 28 | 49 | Adult |
| 4 | 32 | 53 | Adult |
| 5 | 36 | 57 | Adult |
| 6 | 45 | 60 | Adult |
| 7 | 50 | 62 | Adult |
| 8 | 55 | 64 | Adult |
| 9 | 61 | 66 | Adult |
| 10 | 66 | 68 | Adult |
| 11 | 72 | 69 | Senior |
| 12 | 77 | 71 | Senior |
| 13 | 82 | 72 | Senior |
| 14 | 88 | 73 | Senior |
| 15 | 93 | 74 | Senior |
| 16 | 99 | 75 | Senior |
Feeding a Australian Shepherd
At a typical adult weight of 53 lb (24 kg), a neutered adult needs roughly 1207 kcal a day. Use the dog food calculator for your dog's own weight and food.
Frequently asked questions
How old is a Australian Shepherd in human years?
A Australian Shepherd's age in human years depends on size. A Australian Shepherd is a large breed (40–65 lb), so on the size-based chart it is about 36 human years at 5 and 66 at 10. A typical Australian Shepherd lifespan of 12–15 years is about 85 human years at the midpoint.
How long do Australian Shepherds live?
Typically 12 to 15 years. An active herding breed.
When is a Australian Shepherd a senior?
From around 10 years old, which is the last quarter of a typical lifespan. Ask your vet about senior check-ups before then.
Other large breeds
See all breeds · General dog age calculator