St. Bernard
The St. Bernard is a massive Swiss rescue breed originally developed by monks at the Great St. Bernard Hospice in the Alps to locate and rescue snowbound travelers. Known for their gentle, patient temperament despite their imposing size, Saints are devoted family dogs who are especially gentle with children. Their rapid growth requires careful nutritional management.
8–10
years lifespan
140–180
lbs (male)
28–30
inches tall (male)
moderate
energy level
Temperament
How Old Is Your St. Bernard 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 St. Bernard Age CalculatorCommon Health Conditions
Hip Dysplasia
~20% affected per OFA.
Typical onset: 1–4 years
Elbow Dysplasia
~20% per OFA.
Typical onset: 0.5–2 years
Bloat (GDV)
Life-threatening stomach twisting in deep-chested breeds.
Typical onset: 3–10 years
Osteosarcoma
Bone cancer common in giant breeds.
Typical onset: 4–8 years
Dilated Cardiomyopathy
Heart disease common in giant breeds.
Typical onset: 3–8 years
Lifespan Factors
The median lifespan for a St. Bernard is 9 years. Key factors that influence longevity:
- hip/elbow dysplasia
- bloat
- osteosarcoma
- cardiac disease
- epilepsy
When Is a St. Bernard Considered Senior?
St. Bernards are generally considered senior at around 6 years of age. At this point, you should increase vet visits to twice yearly and watch for age-related health changes.
Check your St. Bernard’s age in human years →