Boxer dogs typically live between 10 and 12 years on average

. This lifespan is considered relatively short compared to some other breeds, partly due to their medium-large size and predisposition to certain health issues such as cancer and heart problems

. While 10-12 years is average, some Boxers have been documented to live into their mid to late teens, with a few exceptional cases reaching 16 years or more

. Factors influencing their lifespan include genetics, overall health, diet, exercise, and veterinary care

. In old age, Boxers may slow down and experience typical age-related changes such as hearing loss and vision impairment, but many remain playful and affectionate for much of their lives

. In summary:

• Average lifespan: 10-12 years
• Some live up to 15-16 years in exceptional cases
• Lifespan influenced by size, health issues, and care
• Senior Boxers (8+ years) may show age-related changes but often retain an affectionate nature

This provides a general expectation for how long Boxer dogs live and their condition in older age.