| Height | 25-27 inches (male), 24-26 inches (female) [1] |
|---|---|
| Weight | 110-130 pounds (male), 100-120 pounds (female) [1] |
| Life expectancy | 7–9+ years [1] |
| Temperament | Loyal / Affectionate / Brave [1] |
| AKC group | Working Group [1] |
| Origin | England [1] |
| AKC popularity (2025) | No. 78 of 202 [2] |
Traits at a glance
Scores are the AKC's 1–5 breed trait ratings. [1]
Exercise needs
Bullmastiffs enjoy daily exercise. Some are more sedentary, while others are very active by nature, but moderate exercise should be encouraged. Brisk walks and outdoor play are favorites of the breed, although secure fencing is a must for outdoor areas. [1]
Grooming
Seasonal shedding is to be expected, though unusual hair loss should be noted as a possible problem. A balanced diet and a healthy environment are most important for coat health. Frequent grooming ensures that shedding can be managed, and dogs should be bathed as needed. [1]
Health issues to budget for
Bullmastiffs are a large breed with heavy bone. Breeders strive to adhere to the standard and to avoid overdone animals. In order to do the job of a guard dog, this working breed must be mentally and physically sound. Responsible Bullmastiff breeders support the American Bullmastiff Association Health & Research Committee, and screen their breeding stock for cardiac issues, hip and elbow dysplasia, hypothyroidism and eye problems. [1]
AKC-recommended health tests for breeding dogs: Hip Evaluation, Elbow Evaluation, Cardiac Exam, Ophthalmologist Evaluation, Thyroid Evaluation. [1]
Estimated costs
| Item | Estimate | Src |
|---|---|---|
| Typical vet bill for a giant dog (median $607) | $350 – $1,373 | [3] |
| Yearly cost of a dog, any breed (ASPCA 2021) | $1,391 | [4] |
| Average accident & illness insurance, dog (US 2025) | $836/year | [5] |
Breed-specific price data is rare. These figures are for dogs of this size or for the conditions above, not a quote for your pet.
Did you know?
- The AKC first recognized the Bullmastiff in 1934. [1]
- It ranked No. 78 on the AKC's 2025 most-popular list, compared with No. 43 in 2015. [2]
- Its nickname is the “gamekeeper night dog.” [1]
- The AKC lists England as the breed's country of origin. [1]
- The AKC breed page lists 5 recommended health screenings for breeding dogs, such as Hip Evaluation, Elbow Evaluation. [1]
Good fit for
- ✅ Active owners who can give daily exercise (AKC energy 4/5)
- ✅ First-time trainers who want an eager learner (AKC trainability 4/5)
Common questions
How long do Bullmastiffs live?
The AKC lists a life expectancy of 7-9 years.
How big does a Bullmastiff get?
AKC breed information lists height 25-27 inches (male), 24-26 inches (female) and weight 110-130 pounds (male), 100-120 pounds (female).
How much are vet bills for a Bullmastiff?
Breed-specific bills are rare, so VetReceipt groups dogs by size. For giant dogs like the Bullmastiff, a typical vet bill runs $350 – $1,373 (median $607). The AKC notes health screening for this breed; see the cost guides linked on this page.