When is a Great Dane fully grown?

Great Danes typically reach adult height between 12–18 months, but continue to fill out in muscle and body mass through 18–24 months. Some males take up to 3 years to fully mature. They are a large/giant breed with a slower path to full maturity than small or medium dogs.

Should I feed my Great Dane puppy as much as they want?

No. Free-feeding or overfeeding a Great Dane puppy is one of the most harmful things you can do for their long-term joint health. Measured, portioned meals of a giant-breed puppy formula — and keeping the puppy in lean body condition — is the approach supported by veterinary nutritionists.

How much does a Great Dane puppy weigh at 6 months?

Growth varies by individual and sex, but a 6-month-old Great Dane commonly weighs in the range of 30–45 kg. Males tend toward the higher end of that range. Consistent monitoring and appropriate body condition are more informative than hitting a specific number.

Can I give my Great Dane puppy calcium supplements?

No — additional calcium supplementation in giant-breed puppies fed a complete diet is associated with developmental bone disease. Giant-breed puppy foods already contain appropriate calcium levels. Do not add calcium supplements, dairy, or calcium-rich extras without direct veterinary guidance.

Great Dane Growth Chart: What to Expect | PetCalculator

Great Danes grow faster and for longer than most breeds, typically reaching full size between 18 and 24 months. Learn what healthy growth looks like at each stage and why controlled growth is critical for this giant breed.