Bullmastiff Puppy Weight Calculator

Use this Bullmastiff puppy weight calculator to find out how big your Bullmastiff puppy will get. Just type your puppy's age and weight below and this tool will calculate the future adult size of your puppy.

Puppy Weight Calculator

Predict your puppy's adult weight

Bullmastiff
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Results

Predicted Adult Weight
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Based on current growth rate
0 lbs 100 lbs
AKC Standard
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Breed standard range
Current Ideal
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For this age
Note
  • Predictions are estimates based on breed standards
  • Individual dogs may vary based on genetics and nutrition
  • Consult your vet for personalized assessments
Bullmastiff

Bullmastiff Stats

Height 24 - 27 inches
Weight 100 - 130 lbs
Life Span 7 - 9 years
Size Class Giant
Breed Group Working group

Bullmastiff Growth Chart

Bullmastiff Traits

Good with children
Shedding level
Grooming needs
Openness to strangers
Trainability
Barking
Good with other dogs
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What's it like
Caring for a Bullmastiff

Because of their size, Bullmastiffs are prone to hip and elbow dysplasia, panosteitis (growing pains), and joint instability. Regular vet checkups and controlled growth through a balanced diet and exercise can help reduce the risk. Additionally, avoid obesity, as it exacerbates orthopaedic problems.

Bullmastiff puppies should be fed a giant-breed puppy formula to support their bone development without promoting overly rapid growth. Split meals into 3โ€“4 servings per day until 6 months, then reduce to 2 meals per day. Avoid high-calorie, calcium-rich supplements unless recommended by a vet.

Bullmastiffs only need weekly brushing with a rubber curry comb to control mild shedding and sporadic baths, but other than that, their grooming requirements are minimal. Cleaning their wrinkles, keeping an eye out for excessive drool, and routinely clipping their nails are important upkeep. Although they require consistency to maintain the quality of their skin and coat, they are often easy to groom.

While regular movement is vital, avoid intense or high-impact activities (like long jogs or stair climbing) before 18 months. Focus on gentle walks and supervised play. Over-exercising a growing puppy can strain joints and soft bones.

About the Bullmastiff

The Bullmastiff is a powerful, loyal guardian dog that originated in 19th-century England. Developed by crossing Bulldogs with Mastiffs, the breed was originally used to guard estates and catch poachers. Over time, Bullmastiffs became known not only for their strength and courage but also for their affectionate, calm demeanor with family members.

Classified as a giant breed, Bullmastiffs are known for their imposing size, which makes monitoring their growth especially important. Because of their large frames and rapid early growth, itโ€™s crucial to manage their development with appropriate nutrition and exercise to avoid long-term health issues.

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