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How Big Do Tibetan Mastiffs Get (With Growth & Weight Chart)

Hanh Duong

By Hanh Duong

tibetan mastiff standing on the grass

As Tibetan Mastiff puppies grow, they become powerful, assertive, and sizable canines. The origin of this ancient breed is a little mysterious, but we all know they were developed in the Himalayas to guard livestock, palaces, and monasteries.

The large size and lion-like mane distinguish the Tibetan Mastiff from other breeds. Male dogs can be 26 inches long at the shoulder and weigh 90–150 pounds. While females are generally a bit smaller, they can be 24 inches or more at the shoulder and weigh 70–120 pounds.

In today’s post, we’ll provide a size and growth chart for Tibetan Mastiffs, discuss when they stop growing, and look at factors affecting the size of these canines. Additionally, we’ll give information on the ideal diet for preserving a healthy weight for your dog as well as guide you on how to measure them.

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Facts About Tibetan Mastiffs

Tibetan Mastiffs are giants, just like their name implies! However, don’t let that impressive size scare you. These gentle giants make excellent guard dogs and devoted companions. They are known for being intelligent and reserved. The Himalayas contain Stone Age cave illustrations that demonstrate the existence of this dog’s forebears dating back thousands of years.

These Tibetan dogs are aloof and watchful. Their primary function was to watch over and keep out invaders, and they still do so admirably now. Due to their strong guarding instincts, this large breed will often be wary of strangers. However, those behaviors can be curbed through consistent training.

The breed has a moderate amount of energy, so it’s crucial to give them adequate mental and physical exercise to help perfect their personalities. Although training takes patience on the part of the owner, this dog’s lovable, eager demeanor can make obedience lessons more fun for all. The Tibetan Mastiff will become an excellent addition to many families with their soft demeanor.

Tibetan Mastiff Dog In The Park
Image Credit: OlgaOvcharenko, Shutterstock

Tibetan Mastiff Size & Growth Chart

Age Male Weight Range Male Height Range Female Weight Range Female Height Range
1 month 5–10 pounds 9–11 inches 5–10 pounds 9–10 inches
2 months 15–30 pounds 12–14 inches 10–25 pounds 11–13 inches
3 months 30–45 pounds 15–19 inches 25–40 pounds 14–18 inches
4 months 45–65 pounds 16–19 inches 30–45 pounds 15–18 inches
5 months 50–75 pounds 20–23 inches 35–60 pounds 19–22 inches
6 months 55–85 pounds 21–24 inches 40–60 pounds 20–23 inches
7 months 60–90 pounds 24–26 inches 45–65 pounds 23–25 inches
9 months 70–105 pounds 25–27 inches 55–80 pounds 24–26 inches
12 months 80–135 pounds 27–29 inches 60–110 pounds 26–27 inches

When Does a Tibetan Mastiff Stop Growing?

Tibetan Mastiffs are one of the largest dog breeds in the world, so they need more time than most other canines to reach full size. It can take up to 18 months for the majority of them. Nevertheless, the largest dog can continue to develop muscle for about 6 more months.

tibetan mastiff lying in the sand
Image Credit: Anna Tronova, Shutterstock

The 3 Factors Affecting the Size of Tibetan Mastiffs

Like humans, not all Tibetan Mastiffs develop at the same rate, and there are many factors that influence their size difference.

  • Sex: Your Tibetan Mastiff’s weight and height will be influenced by sex hormones. Male canines are usually slightly larger than females.
  • Legacy: An indispensable factor that affects your dog’s ultimate size is their pet parents. Knowing that can help you predict how big your puppy will become.
  • Diet: Your dog’s intake during the first year of development will influence whether or not they mature larger or smaller than standard. An overfed puppy may grow larger than the average size, while an underfed Tibetan Mastiff may experience limited growth and end up smaller. It’s crucial to provide your dog with a consistent, healthy diet.

Ideal Diet for Maintaining a Healthy Weight

Tibetan Mastiffs are enormous dogs that require large amounts of food. You can expect to feed them 6–10 cups of dry food daily. If you would love to give them a raw diet, they may need 2.5–7 pounds of organ meat, muscle meat, and bones each day. Senior Mastiffs will need less food, whereas growing pups and nursing mothers require very high amounts. Remember to keep a careful eye on your dog’s size to prevent obesity.

Tibetan Mastiff puppy sitting on the chair
Image Credit: Viacheslav Vlasov, Shutterstock

How to Measure Your Tibetan Mastiff

Body length is the distance from the top of your dog’s neck to the base of the tail. When gauging the dog’s body length, place the fabric tape measure where the tail meets the body, then extend it to the base of the neck. ­­

If you want to figure out your dog’s height, put your tape measure at the base of one of their front paws and extend the tape to the tip of their head. You can do it while they’re sitting or standing.

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Tibetan Mastiffs make excellent family guardians thanks to their defensive nature, which has been honed over many generations. It is vital to know how your Tibetan canine should grow to be able to understand where they’re at in their development and provide all the things they need at that stage.

This information also gives you a clearer idea of what to expect if you’re considering getting one of these giants as a pet.

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Featured Image Credit: Olga Aniven, Shutterstock

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