How long does a Beagle Mastiff Mix live?

A typical lifespan is 8–12 years, the midpoint of the Beagle (10–15 years) and the Mastiff (6–10 years).

Is a Beagle Mastiff Mix easy to train?

Trainability is moderate, based on how both parent breeds respond to training. Start early and keep sessions short.

Home › Beagle › Beagle Mastiff Mix

Beagle Mastiff Mix

A Beagle Mastiff mix is a cross between a Beagle and a Mastiff. Most grow into giant dogs of 65–130 lb and live 8–12 years.

Beagle, a purebred dog — BeaglePhoto: Jonatan De Geest, CC BY-SA 3.0, source

Mastiff, a purebred dog — MastiffPhoto: Pleple2000, CC BY-SA 3.0, source

Photos show the purebred parents. There is no single look for a mix: puppies in one litter can resemble either side.

Weight65–130 lbcan be 13–230 lb

Height20–22 inat the shoulder

Lifespan8–12 years

SizeGiant

How big does a Beagle Mastiff Mix get?

Beagle13–30 lb

The mix65–130 lb

Mastiff120–230 lb

Pounds. The dark band is where most Beagle Mastiff Mix dogs end up; the light band is the full range between the smallest and largest parent.

Height runs 20–22 inches at the shoulder, against 13–15 in for the Beagle and 27.5–30 in for the Mastiff. The parents differ a lot in size, so litters vary more than usual. Breeders normally use the larger breed as the mother to keep whelping safe.

Coat, energy and training

Shedding

Moderate

Neither parent has a low-shedding coat, so expect dog hair around the house and seasonal heavy shedding.

Energy

High

Plan on long daily walks plus real exercise, such as running, fetch or a sport. A yard alone will not tire this dog out.

Trainability

Moderate

The Beagle rates moderate and the Mastiff moderate; a puppy may lean either way.

Grooming

Very low to moderate

A weekly brush and the odd bath keep the coat in shape.

Temperament

The Beagle is usually described as friendly, curious, merry. The Mastiff as courageous, dignified, good-natured. A mix can take after either parent or land in between. If you can, meet both parents of a puppy before you choose.

Beagle vs Mastiff vs the mix

Trait	Beagle	Beagle Mastiff Mix	Mastiff
Weight	13–30 lb	65–130 lb	120–230 lb
Height	13–15 in	20–22 in	27.5–30 in
Lifespan	10–15 yr	8–12 yr	6–10 yr
Shedding	moderate	moderate	low
Energy	high	high	moderate
Group	Hound	mixed	Working

Questions about the Beagle Mastiff Mix

How big does a Beagle Mastiff Mix get?: Most grow to 65–130 pounds and 20–22 inches at the shoulder. Because puppies can take after either parent, the full possible range is 13–230 pounds.
How long does a Beagle Mastiff Mix live?: A typical lifespan is 8–12 years, the midpoint of the Beagle (10–15 years) and the Mastiff (6–10 years).
Does a Beagle Mastiff Mix shed?: Shedding is moderate. Neither parent has a low-shedding coat, so expect dog hair around the house and seasonal heavy shedding.
Is a Beagle Mastiff Mix easy to train?: Trainability is moderate, based on how both parent breeds respond to training. Start early and keep sessions short.

Other Beagle mixes

Other Mastiff mixes

Figures are calculated from each parent breed's standard height, weight and life expectancy. How we calculate.