Do you have a Great Dane pup and wonder how tall he or she will grow? Our growth calculator and charts will predict your dog's adult weight. Simply put in your pup's weight and age into our calculator and we will estimate the adult size!

Great Dane Weight Calculator & Growth Chart

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How much should my Great Dane weigh?

Great Danes are very tall dogs. The American Kennel Club calls in the breed standard for the following sizes:

• Females are 28-30 inches tall and weight 110-140 lbs
• Males are 30-23 inches tall and weigh 140-175 lbs

It takes Great Danes two years or longer to reach their full size. Even though their growth slows down considerably after their first year of life, they will continue to grow taller and build more muscles after they pass their first birthday.

What age are Great Danes fully grown?

Your Great Dane will certainly be fully grown by the time he or she is 2 years old. Between the ages of 18-24 months the growth slowly tapers off. In general, the taller a dog is the longer he grows. Some small dog breeds are nearly done growing by the time they are 8 months old. On the other hand, very muscular and large breeds such as also the Mastiff continue growing after their first birthday.

The taller your Great Dane's parents and grandparents were, the higher the chance that yours will also be exceptionally tall and continue growing up until the second birthday.

How big is a 5 month old Great Dane?

At 5 months you can expect your Great Dane to weigh around 45-65 lbs. Females will be at the lower end of this spectrum while males will be at the upper end.

What dog is bigger than a Great Dane?

The English Mastiff and Korean Mastiff can grow even heavier than a Great Dane. The Mastiff breeds are very muscular and big-boned dogs and likely to weigh more than a Great Dane while at equal or lower height.

The Irish Wolfhound is a taller dog than Great Danes as well.