How long do dogs live?
A dog's lifespan primarily depends on its size. Smaller dogs tend to live significantly longer than larger breeds — a Chihuahua may live 15+ years while a Great Dane typically lives 6–10 years.
Factors affecting lifespan
- Breed and genetics
- Body size and weight
- Diet and nutrition
- Exercise and activity
- Veterinary care and vaccinations
- Spaying/neutering (tends to increase lifespan)