When is a Goldendoodle Full Grown? We did the math!

Many new Goldendoodle puppy owners wonder, “when is a Goldendoodle full grown?” Often, this is because Goldendoodles grow extremely fast for the first 11 months of their life. New dog owners usually panic that their dog will be bigger than expected and want a simple way to calculate their future weight.

Predicting how big your Goldendoodle will get isn’t too difficult, as they typically follow a growth curve. You can also usually predict how much your Goldendoodle will weigh by the time they are a full-grown adult within 10 pounds or so. However, there are many variances because Goldendoodles are crossbred dogs. 

Generally, a Goldendoodle will be fully grown at approximately one year old. At 12 months old, your Goldendoodle will be approximately 97% of his expected total body weight. Throughout their life, they will gain a little more weight and fill out, but around one year, they will be fully grown, and the growth curve will start to level off. You can check out our Goldendoodle weight calculator below. If you want to genetically test how big your Goldendoodle will get, we highly suggest you check out Embark DNA Tests.

Estimating the Weight of Your Full-Grown Goldendoodle

You can estimate the weight range of your Goldendoodle with the following chart. The formula is Your Goldendoodle’s Weight x (100 / % of the total size in weeks].

So if my Goldendoodle is 10 pounds at week 12, then his approximate weight is going to be 10 x [1+ (100 / 40.51)] = 24.68 pounds

This data was taken from the growth chart of several Goldendoodle puppies whose size and weight were tracked until they were fully grown. It tends to slightly underestimate your dog’s weight if you have a standard-sized Goldendoodle. This is because the sample set was taken from many mini Goldendoodle and medium Goldendoodle owners. Weight is always an approximation; some dogs can hit their growth spurt earlier than others.

We also made a video to help you figure out when your Goldendoodle is fully grown. View it below:

Estimating your Goldendoodle’s Weight with a DNA Test

If you don’t feel like doing math and want a more precise answer on how big your Goldendoodle will get when they are an adult, you can always get a DNA test. The Embark DNA Test will not only tell you how big your dog will get, but it will also tell you your dog’s health risks, your dog’s breed, and you can figure out their relatives. We bought the Embark DNA Test for our Goldendoodle and found it very accurate.

All we had to do was swab the cheek of our dog and send it in. The results came within a couple of weeks.

Goldendoodle Weight Chart

In general, there are three different sizes of Goldendoodles: mini, medium, and standard. All sizes typically follow this growth curve. In the weight chart above, we plotted the average weight in pounds versus the age (in number of weeks) of the Goldendoodle. The growth curve sample represents several different Goldendoodle dogs.

As a general rule of thumb, at Week 8, when you pick up your puppy:

• Mini Goldendoodles will be 3 to 9 pounds. The weight range is significantly broad for mini Goldendoodles because there are micro, petite, and teacup sizes that offset the weight of this category.
• Medium Goldendoodles will usually range from 8 to 10 pounds.
• Standard Goldendoodles will usually range from 10 to 20 pounds.

For this chart, we assume a full-grown mini Goldendoodle will be 30 pounds, a full-grown medium Goldendoodle will be 45 pounds, and a full-grown standard Goldendoodle will be 60 pounds.

As you can see, a Goldendoodle’s weight tends to grow extremely fast until around week 52 (1 year), at which point they will be 97% of their total body weight. A more helpful graph is below that plots the total size versus the weight of a Goldendoodle dog.

Goldendoodle Growth Chart

We gathered data from several pet owners to create the Goldendoodle growth chart above. We then normalized the data to create this Goldendoodle growth chart for all sizes of Goldendoodles.

Most owners pick up their Goldendoodle puppies at Week 8. When picked up at Week 8, they are already approximately 29.88% of their future full-grown body weight. You can get a general range of how much your Goldendoodle will weigh by multiplying their weight at Week 8 by 4. So if you pick up your Goldendoodle puppy and they weigh around 9 pounds, you will likely have a full-grown Goldendoodle that weighs 36 pounds.

At Week 12 (or 3 months old), they have already undergone approximately 40 percent of the total growth they will see in their life. If you take your Goldendoodle’s weight at Week 12 and multiply it by three, that will give you a rough estimate of their full-grown weight.

By Week 16 (or 4 months old), your Goldendoodle will be approximately half of its future full-grown weight. You can double their current weight to get an approximate full-grown weight range. Remember, a Goldendoodle’s growth is exponential until around 7 to 8 months old.

By Week 24 (6 months old), your Goldendoodle will be approximately 74 percent of its future fully grown weight. If you multiply 1.26 * [weight of your Goldendoodle], you’ll get an approximate future weight of your dog.

At Week 32 (8 months old), your Goldendoodle’s growth should have slowed down. They won’t be gaining much weight each week compared to the first seven months. A Goldendoodle is approximately 86 percent of its future body weight at Week 32. So if you take your dog’s weight and multiply it by 1.14, you will get an approximation of their future adult weight.

At Week 40 (10 months old), your Goldendoodle is at 90 percent of his anticipated weight… only 10 percent more to go until they are fully grown! If you take their current weight at 10 months old and multiply it by 1.10, then that’s the approximate adult weight of your Goldendoodle.

By week 52 (1 year old), your Goldendoodle will be 97 percent of its future total body weight. You can assume they will only gain a few more pounds throughout their life. When is a Goldendoodle full grown? Now! Your pup won’t get much bigger than he is now. 

Conclusion for When is a Goldendoodle Full-Grown?

We’ve looked at the data and can conclude that your Goldendoodle will be about 97% of its fully grown body weight at the 1-year mark. Their weight tends to level off around their first birthday, so we will consider the 1-year mark when your Goldendoodle is fully grown.

FAQs about Goldendoodle Growth

When do Goldendoodles stop growing?

A Goldendoodle usually stops growing around the two-year mark. They usually gain almost all their weight within the first year and only gain a small amount until they are two years old.

How big is a full-grown Goldendoodle?

Mini Goldendoodles full grown are 30 pounds. Medium Goldendoodles full grown are around 45 pounds. Standard Goldendoodles full grown are usually around 60 pounds.

Mini Goldendoodle weight: when do Mini Goldendoodles stop growing?

Mini Goldendoodles will be fully grown around one year of age. They will fill out in weight and stop growing around the two-year mark.

How can I most accurately predict the fully grown weight of my Goldendoodle?

There are two ways to do this. The first is to get a DNA test. We recommend the Embark DNA Test. The second way is to talk to the breeder of your Goldendoodle puppy. The breeder can use the size and weight of the parent dogs and their years of breeding experience to predict the fully-grown weight of your Goldendoodle puppy.

Why is it hard to create a precise Goldendoodle weight calculator?

Goldendoodles are a crossbreed between two breeds: a Golden Retriever and a Poodle. Because Goldendoodles aren’t a true “breed,” they aren’t held to specific breed standards like purebreds. This intentional breed mix often means you get the best of both breeds; however, this comes with more variation in traits such as height and weight. This isn’t a bad thing! Our article above can give you approximate ranges for the predicted height and weight of your future fully-grown Goldendoodle. These ranges will still give you a pretty good idea of how big your Goldendoodle will get.

Are male Goldendoodles and female Goldendoodles full-grown at the same time?

Yes, both male and female Goldendoodles are considered fully grown when they are a year old. However, there is some variation in how big they get. Like most dog breeds, a male Goldendoodle weighs more and is taller than a female Goldendoodle by around 10 percent of its total body weight. To learn more about the differences between male and female Goldendoodles, read our article Male vs. Female Goldendoodle – The Differences Explained!