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Great Dane Size & Dimensions – How Big Are German Mastiffs?

Great Danes are considered a very large dog breed.

Great Dane Size & Dimensions
Weight:54-90 kg (119-198 lbs).
Height:76-86 cm (30-34 inches).
Body Length:71-86 cm (28-34 inches).
Note: Body Length is measured from the base of the tail to the centre of the chest bone & Height is measured from the bottom of the foot to the top of the shoulder (Withers Height)

How Big Are Great Danes Compared to Other Breeds?

Great Danes stand out as one of the tallest breeds, overshadowing other large breeds like the Golden Retriever and Labrador Retriever by a significant margin. They are comparable in size to other giant breeds, such as the Mastiff and the Irish Wolfhound, but are particularly noted for their height. Their imposing stature is balanced by a gentle and affectionate nature, making them “gentle giants” among dogs. While their size demands considerable living space and special considerations for exercise and health care, it also makes them excellent companions for those prepared to accommodate their needs. Great Danes symbolize the very large category, serving as a benchmark for defining what constitutes a giant dog breed.

How Much Variation in Size Is There Amongst Different Great Danes?

There is considerable variation in size amongst Great Danes, with differences in height and weight often seen between males and females, and individual genetics playing a significant role. Some may be leaner and taller, while others are stockier.

To determine if a Great Dane is at a healthy weight, their ribs should not be visible but should be easily felt without too much fat covering. A waist should be visible when viewed from above, and the abdomen should tuck up behind the ribcage when viewed from the side.

When do Great Danes Stop Growing?

Great Danes are a large breed of dog that grow rapidly during their first year of life, but continue to fill out and mature until they reach 2-3 years of age. Typically, Great Danes are considered fully grown when they reach around 1 year of age in terms of height. However, they may continue to gain weight & muscle mass until they are 2-3 years old.

Can You Predict the Size of a Great Dane When it is a Puppy?

It is difficult to predict exactly how big a Great Dane puppy will grow, as there is variation within the breed. However, a general guideline is that male Great Danes will typically grow to be larger than female Great Danes, with an average height of around 76-86 cm (30-34 inches) at the shoulder and a weight of around 54-90 kg (120-200 pounds). Female Great Danes will typically be slightly smaller, with an average height of around 71-81 cm (28-32 inches) at the shoulder and a weight of around 45-59 kg (100-130 pounds).

Essential Items Size Guide for Great Dane

ItemSize CategoryMeasurementWhy
CrateVery Large137×91 cm (54×36 inches)Ensures enough space for a Great Dane to stand, turn around, and lie down comfortably without constraint.
BedVery Large140×100 cm (55×39 inches)Provides ample room for stretching out, accommodating their large size and ensuring comfort during rest.
KennelVery Large150×100 cm (59×39 inches) or largerOffers substantial outdoor space for secure rest and activity, fitting their giant size and need for movement.
CollarExtra Large60-70 cm (24-28 inches) in length,
3-4 cm (1.2-1.6 inches) in width
Properly fits their large neck, ensuring safety and comfort, adjustable to accommodate their substantial girth.

Great Dane Size & Dimensions – How Big Are German Mastiffs?