Puppy Growth Charts and Calculators – How Big Will My Puppy Get?


Puppy Growth and Weight Charts

Aussiedoodle Brewski Dreamydoodles Northwest

Puppy to Adult Aussiedoodle! He is now 55 lbs full grown!


One of the first questions anyone asks when considering purchasing a dog or puppy is “How big will my puppy get?” 

Below you will find some helpful Puppy Growth Charts and a few links to Puppy Weight Calculators as well as different formulas you can use to figure it out on your own. 

Puppy weight estimates are most effectively understood by looking at both the dogs parents wherever possible. This will give you an extremely good idea by looking at the puppy’s family to ascertain what its end size and weight are likely to be.

If one of your puppy’s parent is mini size and one is medium size then you can usually average somewhere inbetween the parents sizes but not always,  sometimes puppies take after one parent more then the other. Ask your breeder about past puppies from the same parents (if possible). 

Goldendoodle Puppy at 12 weeks

Goldendoodle Puppy at 12 weeks


The unofficial formula to guess at a dog’s final weight is:

2 x puppy’s weight at 4 months and add up to 10 pounds. 

When predicting adult size, two easy formulas to remember are FOUR FOLD and DOUBLE UP.

Double Up: Generally, an adult dog will weigh about twice as much as he did when he was 4 months of age; giant breeds will double what they weighed at 5 months.

Four Fold: The weight of your puppy at 8 weeks is a quarter of his adult weight.

With the above factors taken into consideration, it is possible to make a reasonable guess of a puppy’s weight at maturity using the Four Fold and Double Up formulas.

Formula 3

For toy-small breeds: Adult weight = weight at 6 weeks x 4
For medium-large breeds: Adult weight = weight at 14 weeks x 2.5
For large-giant breeds: Adult weight = weight at 16 weeks x 2


Try Puppyweights.com to help figure out your puppy’s adult size and weight. (I have found the puppy weight’s calculator to be ehh.. not so correct sometimes but still fun to try.) 


The PuppyAppy.com calculator uses the following formula… I have found their formula more correct then the the PuppyWeights.com calculator. 

Growth = Current weight in lb./Age in weeks

Adult Weight = Growth x 52

Let’s say, you have a Cocker Spaniel puppy that is 16 weeks old and weighs 12 lb. Divide the current weight, i.e., 12 by 16. It gives 0.75, which is the growth rate of the puppy.

It means that your puppy will grow 0.75 lb. per week. Now, multiply the growth rate by 52, which is the number of weeks in one year.

Most of the dogs reach their full size and weight in a year but not all so this formula definitely won’t work for Giant Breeds or Toy Breeds. Gonna be best for medium size breeds. 

Most of you might not like to do math, which is where the Puppy Weight Calculator will come in handy. You won’t need a calculator to sit and do all the calculations. Simply put your puppy’s weight and age in weeks and click on “Adult Weight” to get the result.


Here’s a handy chart what to expect by age and weight ranges..

Our Standard size Labradoodle puppies range between 7-12 lbs at 8 wks and as adult 45-65 lbs depending on the parents and sex.  Our males are almost always bigger then our females. Our Labraoodle puppies reach full grown by 9-10 months old.

We also breed a Medium Size Labradoodle or Small Standard that range between 30-45 lbs as adults. 

Our Mini Aussiedoodles are usually 4-7 lbs at 8 wks and are 13-17 lbs full grown. So somewhere between teacup and small according to the chart above. 

Tuuka - Aussiedoodle Puppy to Adult

Tuuka – Standard Aussiedoodle – Puppy to Adult – 55 lbs Full Grown


Puppy Growth Chart


Toy dogs

Black Toy Poodle - Puppy Weight Charts

The toy dog chart above is based on the growth rate of a Toy Poodle.

Dogs of this kind of size and weight typically stop growing somewhere between 6 and 8 months of age, but the vast majority of their growth is complete by around six months of age.

Small and medium dogs

Miniature Schnauzer - Puppy Weight Charts

The chart given of a small dog is based on a Miniature Schnauzer. The medium dog is an English Springer Spaniel.

Small to medium sized dogs tend to have completed their growth by around the end of the first year.

English Springer Spaniel - Medium Size Dog

With close to their adult height reached by around nine months.

Again, this is not set in stone. Just a rough guide.


Large Dog

German Shepherd - Large breed dog - Puppy Growth Charts

In this chart the growth rate of the large dog is based on the growth rate of a moderate sized German Shepherd Dog.

Most larger breeds will finally complete their growth somewhere between 18 and 24 months, though they may be close to their adult height by their first birthday.

Giant Dogs

Great Dane - Giant Dog Breed - Puppy Growth Charts

Our Giant Dog is a Great Dane. Some giant breeds reach even greater weights than this and grow for even longer.

Some giant breeds will continue growing for up to three years.


Again, these are just general guidelines. But the general rule is this: the larger the dog, the longer they grows. 


Are you tempted to bring home the smallest puppy from a litter in the hope they stay petite into adulthood?

For example, a Labrador might be a bit too big for your home, but a little Labrador would be a great fit? Very bad but common logic. If the Labrador is too big for you.. please do not bring home a Labrador runt with a hope and a prayer that they’ll stay small because they most likely won’t. Size is based on genetics not puppy size. 

A puppy who’s smaller but healthy before weaning usually catches up with their littermates once they start eating solid food or when they’re hand nursed by the breeder.

Indeed, online dog forums are awash with anecdotes from owners who brought home the smallest puppy in the litter, then watched in disbelief as they reached the highest weight ranges for their breed.

You have been warned. (Sorry!)

Smallest Puppy next to her littermate - She caught up by 4 wks

One of my Smallest Labradoodle Puppies (Runt) in comparison to her littermate sister – She was actually adopted by one of my other Females who had a much smaller litter around the same time and she was able to catch up with her littermates by 4 wks old. Hooray! 


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