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🐶 Dog · size Large

Great Dane

Large dog breed with unique character.

Photo · Wcorrea (CC BY-SA 3.0)

Weight

50–90 kg

Size

Large

Lifespan

8–12 ans

Energy

Élevé

Maintenance

Moyen

Training

Moyen

Le Great Dane is a breed of dog size large, weighing 50–90 kg et vivant en moyenne 8–12 ans. Ses prédispositions documentées (cardiomyopathie, dysplasie) demandent une attention particulière côté alimentation et suivi vétérinaire.It adapts better to a setting with outdoor spaceand accompanies children peacefully.

Profile

At a glance

Energy

Élevé

Trainability

Modéré

Maintenance

Modéré


With children
Apartment×
Other pets×

Indicative profile — every animal is an individual.

⚡ Key facts in 30 seconds

L'essentiel

  • 1Large size (50–90 kg): plan for space, exercise, and food budget.
  • 2Lifespan: 8 to 12 years on average, depending on hygiene and diet.
  • 3High energy level — at least 1 hour of activity per day for their well-being.
  • 4Moderate maintenance — weekly brushing is sufficient.
  • 5Documented predispositions: cardiomyopathy, dysplasia. Veterinary monitoring recommended.

Chapter 1

Getting to know the Great Dane

Origins & history

A story told

The different names of this dog — German Mastiff or Great Dane — illustrate the controversy over its origin that Germans and Danes claim. Arriving in Europe in the 4th century with the Alans, a people of nomadic horsemen of Iranian origin, the Alaunt (from which the name Alano comes, in Italy), these dogs lost their function as auxiliary of war when, at the end of the Middle Ages, they were recognized for their abilities in hunting and, in particular, hunting wild boar. The immediate ancestor of the present-day German Mastiff would be the old Bullenbeisser, crossed with a greyhound. These dogs were of an intermediate conformation between a powerful and energetic Mastiff and a fast greyhound. The word "mastiff" originally designated a large powerful dog, often of undetermined breed. As early as 1870, Chancellor Otto von Bismarck, who owned two, made the breed's popularity soar in Germany. The German nationality was attributed to it in Berlin in 1878 by a group of breeders, then confirmed when in 1880, the first standard was drawn up. The first exhibition of the German Mastiff took place in Hamburg in 1963.

Character

Daily temperament

It generally has good character and proves sociable with other animals when in contact with them from a young age. If well-educated, the German Mastiff is no more aggressive than other dogs. Generally calm and measured, it also makes a good guard dog and its impressive mass is, in itself, dissuasive. It is a dog breed moderately easy to train, notably because of its stubborn character. These are generally good dogs for families, and they like to be in contact with humans.

Chapter 2

Daily life

What if you adopted your future companion?

The Great Dane of your dreams may already be waiting in a shelter. Hundreds of great dane (and equally wonderful crossbreeds) are looking for a family in France — every adoption starts a new story.

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Âge

What human age for a great dane ?

The calculator is already set to the breed's adult size (espérance de vie 8–12 ans). Drag the slider to see the equivalence and corresponding life stage.

3 years
Birth22 years
Adult size

plus de 44 kg — a giant dog ages significantly faster than a small dog after maturity.

Equivalent human age

31years

Adulte

Most stable period. Monthly weigh-in, annual vet visit, dental care — this determines quality of life in later years.

Method: AVMA table: 15 human years in year one, +9 in year two, then +7 per year for a géant dog.

These equivalences are statistical benchmarks drawn from published veterinary tables. Every animal ages at its own pace, depending on genetics, diet and care. This calculator is neither a diagnosis nor veterinary advice.

Health

Health watch

This dog needs special care during its growth: it must be provided with special food and physical exercise during the first three years of its life. Its food portion must be adapted to its age and changes often — the German Mastiff growing very quickly — so it must be established with the breeder or a veterinarian.

Read more (117 mots)

You must also avoid the dog slipping, jumping and running during the entire period when the bones are forming. It must be monitored and properly fed. The German Mastiff must be properly educated from an early age, mainly because of the weight reached in adulthood which can make its control extremely difficult. As for all large dogs, any agitation should be avoided for the German Mastiff, in particular jumping and running, which can lead to "stomach torsion", potentially fatal within a few hours only. "Stomach torsion" usually occurs after a substantial meal whose intake was rapid.

Documented predispositions

cardiomyopathie · dysplasie — adjust diet and veterinary checks.

🐾 Products suited to this breed

Alert

To avoid for dog

Our database lists toxic ingredients and problematic additives by species.

  • low-fat cocoa powderModerate
  • maltitolModerate
  • cocoa pasteModerate
  • onion piecesModerate

Calculator · daily ration

How much to give a great dane ?

Estimate based on the veterinary formula RER × DER, adjusted for dog. Adjust according to package recommendations.

70 kg
50 kg99 kg
Moderate

Result

624 g

per day · 2372 kcal

312 g / repas (2 par jour)

Calculation for food of 380 kcal/100g.

For an exact calculation for your Great Dane (breed, age, allergies, health conditions): create a free account

Appears in

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FAQ

Frequently asked questions about Great Dane

Is the Great Dane suitable for apartment living?+
No, the Great Dane needs space and is happier in a house with outdoor access.
How much exercise per day does a Great Dane need?+
Plan for approximately 1 hour of daily exercise — brisk walks, play, or dog sports.
What is the lifespan of a Great Dane?+
Between 8 and 12 years on average. Proper diet, regular veterinary care, and exercise contribute to a longer lifespan.
Is the Great Dane good with children?+
Yes, the Great Dane is generally renowned for its compatibility with children. Early socialization and parental supervision remain essential.

If you like this dog

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For more information

Sources & official links

Supplementary documentation on reference sites — breed clubs, encyclopedias, veterinarians.

The right score for your Great Dane.

SokoScan calculates a personalized PawScore based on breed, age, weight and your pet's sensitivities. Free, instant.