PetYearsAmerican Shorthair: age & lifespan
American Shorthairs are a medium-sized cat breed with a typical lifespan of 15–20 years (about 18 on average). Check your American Shorthair’s age in human years below.
Size-aware estimate based on the AKC dog-age chart & veterinary life-stage guidance. A guide, not a diagnosis.
American Shorthair age chart
Using a medium-sized breed’s aging curve, here’s roughly how old your American Shorthair is in human years:
| American Shorthair age | Human years |
|---|---|
| 1 year | 15 |
| 2 years | 24 |
| 4 years | 32 |
| 6 years | 40 |
| 8 years | 48 |
| 10 years | 56 |
| 12 years | 64 |
| 20 years | 96 |
How long do American Shorthairs live?
The typical American Shorthair lifespan is 15–20 years. Lifespan varies with genetics, weight, dental care, exercise, and regular veterinary check-ups. Keeping your American Shorthair at a healthy weight and staying current on preventive care are two of the biggest levers on a longer, healthier life.
Related breeds
Lifespan figures are typical ranges for the breed and are educational only — not veterinary advice. Your American Shorthair is an individual; ask your vet about their health.