Use this Great Dane puppy weight calculator to predict how big your puppy will get. Great Danes are a giant breed that keeps growing until around 18-24 months.
Enter your puppy's current weight and age to predict their adult size
Estimates based on breed growth curves. Individual dogs vary with genetics and nutrition — check with your vet for a personalized read.
Slows fast eaters, can aid digestion, holds 4 cups dry or wet food — sized for giant breeds.
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| Age | Weight |
|---|---|
| Birth | 2 to 6 lbs |
| 2 Months | 9 to 18 lbs |
| 3 Months | 17 to 35 lbs |
| 4 Months | 28 to 53 lbs |
| 5 Months | 39 to 70 lbs |
| 6 Months | 50 to 88 lbs |
| 7 Months | 61 to 105 lbs |
| 9 Months | 72 to 122 lbs |
| 10 Months | 83 to 140 lbs |
| 1 Year | 94 to 158 lbs |
| 1.5 Years | 105 to 175 lbs |
| 2 Years | 110 to 175 lbs |
Estimated from typical giant-breed growth curves and the Great Dane's adult weight range. Individual puppies vary — use the calculator above for a prediction based on your puppy's actual current weight.
New breed data, growth tips, and puppy-parenting insights, plus our free printable puppy growth tracker.
Great Danes have the highest bloat (GDV) risk of any breed — some estimates put it around 37% — making this the single most important thing to know before owning one; learn the emergency signs and have a plan. They're also prone to dilated cardiomyopathy (annual cardiac screening from age 1-2 is recommended), hip dysplasia, and Wobbler syndrome, a spinal condition from their long neck that causes an unsteady gait, usually appearing in young adults under 3.
A large-breed puppy formula through 18 months is essential — Wobbler syndrome and hip dysplasia risk both increase with too-fast growth. Split meals and avoid vigorous exercise around mealtimes to help reduce bloat risk.
The short, smooth coat needs minimal grooming beyond weekly brushing.
Early socialization and basic obedience matter more than usual given the breed's size — a poorly trained giant breed is a much bigger problem than a poorly trained small one. Danes are generally eager to please and respond well to positive reinforcement.
Despite the name, the Great Dane was developed in Germany, bred down from mastiff-type boarhounds to hunt wild boar and later serve as an estate guardian — the size and power come from that hunting heritage, even though the breed is now almost exclusively a gentle companion.
Great Danes are famously described as "gentle giants" — despite their imposing size, the temperament is friendly and affectionate, which is part of why the breed remains popular as a family dog despite the commitment a giant breed requires.
