Giant

Great Dane Full Grown: Size & Weight

A full-grown Great Dane weighs about 110–175 lb and stands roughly 28–32 in tall at the shoulder.

Adult Great Dane

Have a Great Dane puppy? Estimate its adult size

Built on the giant growth curve, clamped to the breed's range.

Great Dane growth chart

How a giant-size dog like the Great Dane fills out over its first months. Switch between percent of adult weight and pounds, and enter a weigh-in above to plot your puppy.

0% 25% 50% 75% 100% 0 3 6 9 12 15 18 Age (months)
  • Great Dane

Median curves computed from ~89,000 healthy dogs aged 2–24 months in the open Salt et al. 2017 dataset (PLOS ONE, CC BY 4.0), grouped into PuppySize's five size classes.

Age % of adult weight Estimated weight
2 months 14.5% 16–25 lb
3 months 26.5% 29–46 lb
4 months 39.1% 43–68 lb
5 months 50.5% 56–88 lb
6 months 61.3% 67–107 lb
7 months 71.7% 79–125 lb
8 months 79.4% 87–139 lb
9 months 84.6% 93–148 lb
10 months 87.9% 97–154 lb
11 months 91.2% 100–160 lb
12 months 93.9% 103–164 lb
13 months 95.7% 105–167 lb
14 months 97.2% 107–170 lb
15 months 97.2% 107–170 lb
16 months 99.4% 109–174 lb
17 months 99.4% 109–174 lb
18 months 100% 110–175 lb

How confident is this estimate? Based on an official breed standard or cross-checked veterinary/registry sources.

About this breed's data: AKC standard: males 30-32 in and 140-175 lb, females 28-30 in and 110-140 lb.

Sources: American Kennel Club, Salt et al. 2017 (PLOS ONE) growth data.

How we calculate this

Great Dane questions

How big does a Great Dane get?
A full-grown Great Dane typically weighs 110–175 lb and stands 28–32 in tall. Use the calculator above with your puppy's current age and weight for a personalized estimate.
When does a Great Dane stop growing?
Most Great Danes reach their full adult size around 18 months, in line with giant-size dogs. They do most of their growing in the first 6 months, then fill out more slowly.
Are these Great Dane size estimates accurate?
Based on an official breed standard or cross-checked veterinary/registry sources. Estimates are typically within 10–20% for purebreds; designer and mixed breeds vary more. We always show a range and clamp it to this breed's known adult size.

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