Boxer
The Boxer is a medium-to-large working breed developed in Germany from the Bullenbeisser and Bulldog. Known for their muscular build, square jaw, and boundless energy, Boxers are famously patient with children and make excellent family guardians. They mature slowly — many retain puppy-like playfulness well into their third year.
8–12
years lifespan
65–80
lbs (male)
23–25
inches tall (male)
high
energy level
Temperament
How Old Is Your Boxer in Human Years?
Use our breed-specific calculator to find out, plus get personalised health and care guidance for your dog’s exact age.
Open Boxer Age CalculatorCommon Health Conditions
Cancer (Mast Cell, Lymphoma, Brain)
One of highest cancer rates of any breed. #1 cause of death.
Typical onset: 5–10 years
Boxer Cardiomyopathy (ARVC)
Heart condition specific to Boxers causing arrhythmia and potential sudden death.
Typical onset: 2–8 years
Bloat (GDV)
Life-threatening stomach twisting in deep-chested breeds.
Typical onset: 3–10 years
Hip Dysplasia
~12% affected per OFA.
Typical onset: 1–4 years
Degenerative Myelopathy
Progressive spinal cord disease. Boxers carry SOD1 mutation.
Typical onset: 7–12 years
Lifespan Factors
The median lifespan for a Boxer is 10 years. Key factors that influence longevity:
- cancer (very high)
- Boxer cardiomyopathy (ARVC)
- bloat
- hip dysplasia
- DM
When Is a Boxer Considered Senior?
Boxers are generally considered senior at around 8 years of age. At this point, you should increase vet visits to twice yearly and watch for age-related health changes.
Check your Boxer’s age in human years →