Updated:October 20, 2022. Are you thinking about getting a Goldendoodle, but don’t know which size you should get? Or maybe you already have a Goldendoodle puppy and you want to know how big your pup will be when full grown?
Wondering when a Goldendoodle stops growing?
Join us as we look what size a Goldendoodle can grow to be and when they will stop growing.
In this post we will go over:
- The Goldendoodle sizes (did you know you can find them in five sizes now),
- How big a full grown Goldendoodle, Mini Goldendoodle and Toy Goldendoodle.
- The difference between a standard Goldendoodle and the mini or toy Goldendoodles. (hint, it’s not just their size)
- Ways you can estimate how big your Goldendoodle will be when fully grown
As an added bonus we will compare what the breeders say about size to the reported experiences of Goldendoodle owners.
How Big will a Goldendoodle Get?
The adult size of your goldendoodle will have a lot to do with which size category you choose. Goldendoodles can be found in five sizes; standard, medium, mini, toy and teacup. But size ranges don’t tell you the whole story.
These sizes are sometimes a little more than a guess by the breeder based on what they think the puppies may grow up to be.
Here are a few ways breeders determine which size category a Goldendoodle puppy falls into.
1. Size determined by Poodle type
The first is to follow the type of the Poodle used in breeding. So, for an example if;
- If a Golden Retriever is bred to a mini Poodle, the offspring would be considered mini Goldendoodles.
- Same thing goes with a Golden Retriever bred to a standard Poodle. This combination is considered either just a Goldendoodle or a Standard Goldendoodle.
- Medium Goldendoodles used to be known as a small standard Goldendoodle until someone decided to call them mediums.
- A Golden Retriever bred with a toy poodle is a toy Goldendoodle, and
- Teacup Goldendoodles are the runts of toy litters mated together.
Although this method is still commonly used, it is not very accurate if the parents have a large height and weight difference like with the mini Goldendoodle.
Because you can’t expect to mate a 60 pound Golden Retriever with a 15 pound mini poodle and get a litter of puppies that are all 20 to 35 pounds and in proportion. Although a couple might end up at this weight range there will also be some that are outside the desired range.
What you do often get is a dog with either a long body and short legs or a short body with long legs.
This is caused by the combination of genes that go into a dog’s physical structure. Since you can’t control which genes are passed down when you combine two totally different sized dogs the outcomes will be random.
Changing the size of a dog should be done over time
To avoid structural issues, a good Goldendoodle breeder will take the time to breed down a standard sized goldendoodle to a smaller size.
The general rule I have heard is that the difference between the two dogs should not be greater than 10 pounds. This allows a gradual decrease in size with less potential issues.
So, instead of breeding a full sized Golden Retriever with a mini poodle to get a Mini Goldendoodle, they will match a smaller Golden to a small standard Poodle or a true Moyen Poodle, to get a medium sized F1 Goldendoodle.
Then they mate the smaller F1 Goldendoodle to a smaller poodle, resulting in an F1b Goldendoodle.
This process is repeated until the puppies are consistently a smaller size.
There are still some issues with this method. One of them being that every dog has two genes for each trait, with one being recessive and one dominant. These genes combine with other genes to determine the dog’s looks and other traits.
This means dogs can inherit a gene that might not be visible like being big, but still pass that gene down to their off-spring.
It’s not uncommon to hear from breeders who state that while most of the litter were in the predicted range they have one or two outliers that were 5 to 10 pounds smaller or bigger than the average.
2. Divide by 2
I have heard some breeders say to add up the weight of the parents and divide it by two to estimate the size of the puppies when full grown.
But again genetics don’t work this way. Not only do puppies inherit physical traits from their parents, they can also inherit traits from their grandparents, great grandparents and so on.
This means that even if the parents are close in size, if they have larger or smaller ancestors, you can still get a lot of variation of size in the same litter.
3. Wait until they grow up
Another way to establish the size range of a Goldendoodle is to wait until they are fully grown. This is the method used by the Goldendoodle Association of North America.
Final size category of a dog will be determined at adulthood and is measured at the withers. Please be aware that the estimated size of a puppy by a breeder is an educated guess; therefore, a puppy’s final size may vary somewhat from a breeder’s initial calculation.Goldendoodle Association of North America
Of course waiting for your future puppy to grow up to determine their size is not useful when you are looking for your future dog to be a certain size.
But a good breeder will not only have knowledge of the dog’s ancestors but will also keep in touch with their puppy’s families to know how big previous litters have grown. This combined information should allow them predict the size of future litters with some accuracy
The below chart shows the GANA Goldendoodle Breed Standard for size. Members of GANA strive to match these standards. But as you can see from the above statement from GANA, breeders should not guarantee the size.
GANA Goldendoodle Size Chart
|Size Range||Height Range||Typical Weight Range|
|Petite||Below 14 inches||25 lbs. or less|
|Miniature||Over 14 but under 17 inches at wither||26-35 lbs.|
|Medium||Over 17 but under 21 inches at wither||36-50 lbs.|
|Standard||Over 21 inches at wither||51 or more lbs.|
Fully Grown Goldendoodle Questions
How big is a full grown Goldendoodle?
Breeders state that a standard Goldendoodle will be 50 or more pounds and 21 inches or taller at the shoulder when fully grown This matches the data collected from Goldendoodle owners who reported weights between 50 and 110 pounds for their adult Goldendoodles.
How big is a full grown mini Goldendoodle?
According to breeders a full grown mini Goldendoodle should be between 26 to 35 pounds and 14 to 17 inches tall at the shoulder. But people reported that their “Mini” Golden doodle ranged anywhere between 15 to 35 pounds when full grown.
As I pointed out above the doodle generation will have an effect on the size of your Goldendoodle. Later generations will have more consistency in size than first generation mini doodles.
How big is a fully grown toy Goldendoodle?
The Goldendoodle Association lists a petite Goldendoodle as their smallest size. This size range includes the toy, Micro mini and teacup Goldendoodles. Breeders state that a petite Goldendoodle is under 14 inches tall and weighs less than 25 pounds.
How big is a medium sized Goldendoodle when fully grown?
The medium sized Goldendoodle is a relatively new size. They were once considered a small standard, but as more people started looking for a medium sized dog, breeders strived to breed more Goldendoodle in this size range.
The estimated size range of a Medium Goldendoodle when fully grown is approximately 17 to 21 inches tall and 36-50 lbs.
When does a Goldendoodle stop growing?
It depends on the size of the Goldendoodle. Larger dogs take a longer time to grow.
Since the Golden Retriever and Standard Poodle have about the same growth timeline it’s easy to estimate how long it will take for the Standard Goldendoodle to reach their adult height and weight.
As you can see from the chart below the Standard Poodle reaches their full size by the time they reach 2 years old. A Golden Retriever reaches their full height a little sooner than the Poodle which is taller, but they take a little longer to reach their full weight.
This means that a standard sized Goldendoodle should reach their adult height around 1.5 years old. It will take another 6 months to a year for them to fill out and reach their adult weight.
Size chart for the Golden Retriever and Poodle
|Breed||Age when they reach Full Height||Age when they reach Full Weight|
|Golden Retriever||16 months||2+ years|
|Standard Poodle||18 months||24 months|
|Mini Poodle||8-9 months||12 months|
|Toy Poodle||6-7 months||10 months|
Remember these are estimates based on averages. Individual dogs may reach their adult size a little sooner or later than the average.
But it is harder to estimate when the medium, mini and toy Goldendoodles will stop growing because of the difference in size between the Golden and smaller poodles. As I mentioned above, large dogs take longer to grow than smaller dogs.
So, instead of estimating based on parent breeds, we looked at self reported data from Goldendoodle owners to see when their doodles stopped growing.
As you can see from the chart below Goldendoodle owners reported that their standard Goldendoodle stopped growing between 1 and 2 years. Most Goldendoodle stopped growing in height by the time they were 1 year old. Medium Goldendoodles took a little less time. They stopped growing by 1.5 years and mini Goldendoodles reached their full size by the time they were a year old. The petite Goldendoodles were finished growing by 9 months old.
Goldendoodle Size Chart – based on self-reported data from Goldendoodles owners
|Goldendoodle Size||Age when they reach Full Height||Age when they reach Full Weight|
|Standard||10 to 12 months||1 to 2 years|
|Medium||6 to 7 months||9 to 18 months|
|Mini||6 months||8 to 12 months|
|Toy||6 months||6 to 9 months|
|Teacup||6 months||6 to 8 months|
How accurate are size estimates for Goldendoodles?
As you can see the estimated size of a Goldendoodle puppy when fully grown is not always accurate. In a poll Goldendoodle owners were asked if the size estimate given by their breeder was accurate. Here are the results.
- 58% of responders stated that their mini Goldendoodle did not fall within the expected weight range of their adult size.
- 45% expected their pup to be smaller
- 13% expected their pup to be larger
- 42% grew to the expected size.
Goldendoodle Full Grown Size Estimates Accuracy
|Goldendoodle Mini||Percentage that were accurate|
|Weighed more than expected||45%|
|Weighed in the expected range||42%|
|Weighted less than expected||13%|
How to determine the size of your Goldendoodle?
There are a few ways you can estimate how big your puppy may get.
Talk to your breeder
The first way I would recommend is to talk to your breeder. They should have first hand knowledge about your puppy’s parents, and grandparents. They should also know basic information about their great grandparents. Especially if the breeding dogs were AKC purebreds.
Assuming they are an experienced Goldendoodle breeder, they should also have some information about previous litters and how big they have grown to.
This should help estimate how big your puppy will get. Though this is not 100 percent foolproof. Puppies can inherit unseen traits that hadn’t been visible in past generations.
2. Use a simple calculation
Another common way is to use this simple calculation:
- For standard Goldendoodles double their weight at 16 weeks and add 5 pounds.
- Minis just double their weight at 16 weeks but don’t add any extra weight. We put this to the test with full grown Cavapoos and found that the calculation was fairly accurate for smaller Cavoodles, and only slightly off for larger Cavapoos. But the sampling was small.
3. Weight Calculators
This is similar to the calculation above but instead of you doing the math, they do it for you. Most will ask for your puppy’s age and current weight. They are only semi-accurate because most do not ask if the dog is a large or small breed.
4. DNA tests
DNA tests look for genetic indicators to tell whether your dog will be a large or small dog. There is still a lot of research that needs to be done before they are completely accurate. One Goldendoodle owner reported that a DNA test predicted that her dog would be twice the weight she ultimately ended up being.
When do Goldendoodles calm down?
When you first bring home your little fur baby, they are often scared and tired. This translates to a pup that is low key and sleeps a lot.
But once they settle in they become a big ball of destructive energy. You will find that they want to play all the time, voluntary naps are a thing of the past and your hands have become their favorite chew toy.
At this point you may be wondering when your Goldendoodle will calm down and turn into the wonderful dog you always heard about. You may even start regretting getting a puppy.
But don’t despair. With the right training your Goldendoodle puppy will settle down once they reach adulthood at around one year old. This is the average age for Goldendoodles, smaller Goldendoodles may settle down sooner and large Goldendoodles may take a little longer.
To help settle them down sooner I suggest taking them to a puppy kindergarten class with an experienced trainer. Starting training early will help with many of the issues you will deal with when they go through their adolescence period at 6 to 18 months.
What is the Difference between a Goldendoodle and a Mini Goldendoodle?
While size is an obvious difference between the Standard Goldendoodle and Mini Goldendoodle, it’s not the only difference. The standard Goldendoodle will take longer to grow and mature, but once fully grown they will settle down and be calmer. A mini Goldendoodle will stay more active and be energetic even after they fully mature.
This is due to the mini poodle’s tendency to be high strung. But as with many behavioral issues for dogs, exercise and proper training will go a long way to keeping these tendencies in check.