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Chihuahua Mastiff Mix

A Chihuahua Mastiff mix is a cross between a Chihuahua and a Mastiff. Most grow into large dogs of 60–120 lb and live 10–13 years.

Chihuahua, a purebred dog
ChihuahuaPhoto: Caterinarufo, Public domain, 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.

Weight60–120 lbcan be 3–230 lb
Height16–19 inat the shoulder
Lifespan10–13 years
SizeLarge

How big does a Chihuahua Mastiff Mix get?

Chihuahua3–6 lb
The mix60–120 lb
Mastiff120–230 lb

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

Height runs 16–19 inches at the shoulder, against 5–8 in for the Chihuahua 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
Low

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

Energy
Moderate

Daily walks and some play are enough for most of these dogs.

Trainability
Moderate

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

Grooming
Very low

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

Temperament

The Chihuahua is usually described as charming, graceful, sassy. 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.

Chihuahua vs Mastiff vs the mix

TraitChihuahuaChihuahua Mastiff MixMastiff
Weight3–6 lb60–120 lb120–230 lb
Height5–8 in16–19 in27.5–30 in
Lifespan14–16 yr10–13 yr6–10 yr
Sheddinglowlowlow
Energymoderatemoderatemoderate
GroupToymixedWorking

Questions about the Chihuahua Mastiff Mix

How big does a Chihuahua Mastiff Mix get?
Most grow to 60–120 pounds and 16–19 inches at the shoulder. Because puppies can take after either parent, the full possible range is 3–230 pounds.
How long does a Chihuahua Mastiff Mix live?
A typical lifespan is 10–13 years, the midpoint of the Chihuahua (14–16 years) and the Mastiff (6–10 years).
Does a Chihuahua Mastiff Mix shed?
Shedding is low. Neither parent has a low-shedding coat, so expect dog hair around the house and seasonal heavy shedding.
Is a Chihuahua Mastiff Mix easy to train?
Trainability is moderate, based on how both parent breeds respond to training. Start early and keep sessions short.

Other Chihuahua mixes

Other Mastiff mixes

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