PetYears
Chihuahua: age & lifespan
Chihuahuas are a small dog breed with a typical lifespan of 14–17 years (about 16 on average). Check your Chihuahua’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.
Chihuahua age chart
Using a small breed’s aging curve, here’s roughly how old your Chihuahua is in human years:
| Chihuahua age | Human years |
|---|---|
| 1 year | 15 |
| 2 years | 24 |
| 4 years | 32 |
| 6 years | 40 |
| 8 years | 48 |
| 10 years | 56 |
| 12 years | 64 |
| 17 years | 84 |
How long do Chihuahuas live?
The typical Chihuahua lifespan is 14–17 years. Lifespan varies with genetics, weight, dental care, exercise, and regular veterinary check-ups. Keeping your Chihuahua 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 Chihuahua is an individual; ask your vet about their health.