How Big Will My Great Dane Get?
Great Danes are a giant breed that typically weigh 45–90 kg (99–198 lbs) at full size. Giant breeds are the slowest to mature, often not reaching their full adult weight until 18–24 months.
Great Dane Size at a Glance
Adult Weight
45–90 kg
99–198 lbs
Adult Height
71–86 cm
28–34 in
Size Category
giant
Fully Grown By
18–24 mo
Great Dane Growth Chart
Great Dane Weight by Age
Predict Your Great Dane Puppy's Adult Weight
Enter your puppy's current age and weight for a personalized prediction.
Open Weight CalculatorGreat Dane Growth & Development
Giant breeds are the slowest to mature, often not reaching their full adult weight until 18–24 months. They have an extended growth period that requires careful nutrition management.
A Great Dane's growth rate is fastest in the first 6 months of life. For larger breeds like the Great Dane, it's important not to over-feed during the growth phase, as rapid weight gain can put stress on developing joints and bones.
Factors that influence your Great Dane's adult size include genetics (parent size), nutrition quality, spay/neuter timing, and overall health. Males typically weigh 10–20% more than females.
Frequently Asked Questions
How big will my Great Dane puppy get?
A full-grown Great Dane typically weighs between 45–90 kg (99–198 lbs). Males tend to be on the larger end of the range while females are usually smaller.
When do Great Danes stop growing?
Giant breeds are the slowest to mature, often not reaching their full adult weight until 18–24 months. They have an extended growth period that requires careful nutrition management. Individual dogs may reach their full size slightly earlier or later depending on genetics, diet, and overall health.
How much should a Great Dane puppy weigh at 12 weeks?
At 12 weeks, a Great Dane puppy typically weighs around 20.3–27 kg (45–60 lbs), which is roughly 30–40% of their adult weight.
How can I tell if my Great Dane puppy is the right weight?
Compare your puppy's weight to the growth chart above. A healthy Great Dane puppy should follow a steady growth curve. If your puppy's weight deviates significantly from the expected range, consult your veterinarian.
Learn More About Great Danes
Explore the full breed profile, find name ideas, or check ownership costs.