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How heavy will the Pyrenees be?

In this Great Pyrenees size guide we are going to discuss the size and growth pattern of the Great Pyrenees dog. You’ll also get to try our interactive puppy growth calculator and size chart to predict your puppy’s full-grown size. Let’s dig in!

Our handy interactive puppy growth chart and calculator takes all the hard work out of predicting your puppy’s potential adult size. This helps you know exactly what you are wearing.

Final Words

As you can see, the Great Pyrenees is a large dog that is large in both weight and height when fully grown.

If you have a new puppy, you can use our Great Pyrenees growth chart to know what to expect as your puppy grows.


The Great Pyrenees begins life as a small ball of white fluff, but grows to a 100-pound puppy that is close to three feet by the time they are one year old. These dogs grow up fast!

Even this giant size is not full size and they can grow another 40 to 60 pounds after the first year.


These white, friendly babies come in all sizes and colors.

Although the Great Pyrenees breed is famous for its luxurious white outer coat, there is a range of colors and different combinations of them to choose from!

Most of the dog breeds range from white to cream in color, but some tend to have markings and spots of different colors on their bodies. Some Great Pyrenees have gray, maroon, dark brown or brown markings on their tail, head, ears or other prominent body parts.

Measuring Tips

Get a measuring tape and prepare your dog! Here are the main measurements you should get:

  • Neck: This is a measurement of the circumference of your dog’s neck. From the base collar, you pull the tape around your dog’s neck. It should be snug but not tight.
  • Height: When measuring your Great Pyr’s height you start from the tip of the shoulder blade known as the withers and go up to the tip of the foot.
  • Chest Circumference: This is the widest part of the chest. The tape measure is pulled around the chest to measure a dog’s chest girth.
  • Length of the body: The length of the body is measured from the base of the neck where the collar sits to the base of the root.