zooming pawsPuppy calculator

Great Dane full grown

A full grown male Great Dane weighs 140 to 175 pounds and stands 30 to 32 inches at the shoulder. A female weighs 110 to 140 pounds at 28 to 30 inches. A Great Dane is still adding weight through its second year, later than any other common breed.

full grown, across every size
110 to 175 lbfull grown, across every size
at the shoulder
28 to 32 inat the shoulder
before growth slows to a crawl
13 monthsbefore growth slows to a crawl

Great Dane weight calculator

Answers update as you move the sliders.

Age unit
Weight unit
Expected adult size

Giant: over 88 lb as an adult.

SexOptional

Likely adult weight

142lb

8 in 10 land between
114 to 185 lb
Fully grown
around 13 months

Size class: Giant, over 88 lb

2Now4681012Adult
Age in monthsSo farProjected

Fair. Four to five months is the usual time to make this estimate. It is reasonable now, but the range is still wide.

Estimate only. For health questions, ask your vet. Mixed breeds can land outside the range.

See the expected weight month by month
AgeLikely weightRange
2 months22 lb11.6 to 39 lb
3 months37 lb22 to 63 lb
4 months56 lb35 to 90 lb
5 months75 lb48 to 117 lb
6 months91 lb60 to 140 lb
7 months104 lb69 to 157 lb
8 months114 lb78 to 169 lb
9 months122 lb82 to 177 lb
10 months126 lb88 to 181 lb
11 months129 lb91 to 185 lb
12 months132 lb92 to 187 lb
13 months134 lb96 to 189 lb
14 months135 lb97 to 190 lb
15 months136 lb98 to 190 lb
16 months137 lb100 to 191 lb
17 months138 lb101 to 191 lb
18 months142 lb110 to 191 lb

Scroll the table sideways to see every column.

Expected weight month by month, from the same estimate.

In short

Key takeaways

  1. A full grown Great Dane weighs 110 to 175 lb across all its sizes.
  2. The weight and height here come from the official breed standard.
  3. Most of the growing is done by about 13 months.
  4. A short coat keeps the grooming bill low.
  5. The chart below shows a band, not a line, because individual dogs vary.

Adult size

Adult size and growth chart

Great Dane

Giant size class · Category VI (40 kg and over)

Breed standard
adult weight
110 to 175 lbadult weight
height at the shoulder
28 to 32 inheight at the shoulder
most growing done by
13 monthsmost growing done by
WeightHeight at the shoulder
Male140 to 175 lb30 to 32 in
Female110 to 140 lb28 to 30 in

Scroll the table sideways to see every column.

Great Dane growth chart. Weight runs from about 17 to 27 pounds at 2 months, up to about 110 to 174 pounds at 18 months, for a full grown Great Dane.
Estimated from the adult weight range above and the growth standard for the giant size class. The band runs from the low end of the adult range to the high end.
See the Great Dane weight by age as a table
AgeLow endHigh end
2 months16.7 lb26.5 lb
3 months28.7 lb45.7 lb
4 months43.6 lb69.4 lb
5 months58 lb92.3 lb
6 months70.2 lb111.6 lb
7 months80.1 lb127.5 lb
8 months88.1 lb140.1 lb
9 months94 lb149.5 lb
10 months97.6 lb155.3 lb
11 months99.6 lb158.5 lb
12 months101.8 lb161.9 lb
15 months104.9 lb167 lb
18 months109.5 lb174.2 lb

Scroll the table sideways to see every column.

Timing

When a Great Dane stops growing

In our figures, a dog in the giant size class has done almost all of its weight gain by about 13 months. After that the weekly gain drops below a quarter of a percent of adult weight, which is slow enough that you will not see it on the scales week to week.

Height finishes earlier than weight. The AKC puts small breeds at full size by 6 to 8 months, medium breeds at around 12 months, and giant breeds at 12 to 18 months, with some very large breeds taking up to 24.

13 months

before weekly weight gain drops below a quarter of a percent of adult weight

Sex

Male and female

The breed standard gives different figures for males and females, and they are in the tables above. In the growth data behind our calculator, a female of a given size class is also slightly further along toward her adult weight at any given age than a male, so telling the calculator which you have shifts the estimate by a few percent.

Variation

Why individual Great Danes differ

The growth standard we use for the other size classes was built on dogs under 40 kg, which is about 88 pounds. A Great Dane is far above that, so its curve is drawn from the same open data but from the part the published paper did not model. We say so on the chart.

A Great Dane puppy can put on 2 or 3 pounds a week in its fastest months. That rate is also why feeding a giant-breed puppy is a veterinary question: growing too fast is a known risk to developing joints.

Height finishes well before weight. A Great Dane is usually close to its adult height at a year, and then spends the second year filling the frame.

FAQ

Questions people ask

How big is a Great Dane full grown?
110 to 175 pounds across every size this breed comes in, standing 28 to 32 inches at the shoulder. Those figures come from the breed standard.
How can I tell how big my Great Dane puppy will get?
Weigh your puppy and enter its age in the calculator on this page. It is already set to the giant growth curve for this breed, so it works backwards from where your puppy is now rather than from the breed average. Four to six months is when the estimate is most reliable.
When does a Great Dane stop growing?
Weight gain slows to almost nothing at around 13 months for a dog in the giant size class, and the chest and frame keep filling out for months after that. Height finishes earlier than weight in every breed.
How much does a full grown Great Dane weigh?
140 to 175 pounds for a male and 110 to 140 for a female, under the AKC standard. That is the heaviest breed on this site.
When is a Great Dane full grown?
Height at about a year, weight through the second year. The AKC notes that very large breeds such as Mastiffs may not reach full size until 24 months, and the Great Dane is in that group.
How accurate is a weight estimate for a Great Dane puppy?
Less accurate than for a small breed, because the published growth standard stops at 40 kg. Our giant-breed curve comes from the same open dataset but from outside the modelled range, and the calculator shows a wider range to match.

Method

How we calculate this

The adult weight and height come from the sources below. The shape of the growth chart comes from our own calculation on the open data behind a published veterinary growth standard, described on the how we calculate page. The charts are estimates built from a breed range and a population curve, not measurements of this breed.

Sources

4 sources behind the figures on this page.

  • Great Dane breed standard

    American Kennel Club - read 2026-10-08

    akc.org

  • When Does My Puppy Finish Growing?

    American Kennel Club - read 2026-10-08

    akc.org

  • Growth standard charts for monitoring bodyweight in dogs of different sizes

    Salt C, Morris PJ, German AJ, Wilson D, Lund EM, Cole TJ, Butterwick RF. PLoS ONE 12(9):e0182064 - dated 2017-09-06 - read 2026-10-08

    Open access. Sets the adult-size categories and the growth standard method.

    pmc.ncbi.nlm.nih.gov

  • Growth standard charts for monitoring bodyweight in dogs of different sizes - supporting data

    University of Liverpool Data Catalogue - dated 2017-07-28 - read 2026-10-08

    14,957,947 weight records from Banfield Pet Hospitals, 1994-2013, released under CC BY 4.0. Our growth curves are calculated from this file.

    datacat.liverpool.ac.uk

Nearby

Keep going

Puppy weight calculator

Enter age and weight. Get the adult weight and a growth chart.

Open calculator

Breed growth charts

Weight-by-age charts for 24 popular breeds.

See the breeds

Pregnancy calculator

Enter the mating date. Get the due date for a dog or cat.

Open calculator

Last reviewed . Estimate only. For health questions, ask your vet.