Tibetan Mastiff Weight & Growth Chart

Complete weight guide with growth charts for male and female Tibetan Mastiffs from puppy to adult.

Male Adult Weight

70–150 lbs

Female Adult Weight

59–132 lbs

Tibetan Mastiff Weight Overview

A fully grown Tibetan Mastiff weighs between 70 and 150 pounds. Males range 70–150 lbs; females 59–132 lbs.

Males weigh 90-150 pounds, females 70-120 pounds; the breed should be powerful and imposing but not excessively heavy or cumbersome..

Growth Chart

When Does a Tibetan Mastiff Stop Growing?

Most Tibetan Mastiffs reach adult height of 24–26 inches by 15–24 months, with full body weight of 70–150 lbs achieved shortly after. Males fill out to 150 lbs while females reach 132 lbs.

Growth rate is influenced by genetics, diet quality, and spay/neuter timing. Moderate exercise needs of 30-45 minutes of daily walking; most active at dawn and dusk, and will patrol their territory rather than engage in structured exercise..

Is My Tibetan Mastiff Overweight?

Is your Tibetan Mastiff at a healthy weight? The ideal range is 70–150 lbs (males 70–150, females 59–132). Check these three signs:

Ribs: Easily felt with light pressure; not visible but not buried under fat
Waistline: A clear narrowing behind the ribs when viewed from above
Abdominal tuck: The belly slopes upward from the ribcage to the hind legs when viewed from the side

If your dog fails any of these checks, consult your vet. The breed has naturally lower thyroid hormone levels than other breeds, so standard thyroid tests can produce false positives for hypothyroidism; breed-aware vets are essential..

Feeding Recommendation

Daily food for an adult Tibetan Mastiff: 1.1–3.0 cups of high-quality dry food in two meals, budgeting $105–155/month. Puppies growing toward 70–150 lbs need three to four daily feedings until around six months old. The breed has naturally lower thyroid hormone levels than other breeds, so standard thyroid tests can produce false positives for hypothyroidism; breed-aware vets are essential.—treats count toward daily calorie intake.

Weight by Age Table

Age	Male (lbs)	Female (lbs)
3 months	26.7–33.3	22.6–28.4
6 months	60.0–75.0	50.9–63.9
9 months	86.6–108.4	73.5–92.2
12 months	106.6–133.4	90.5–113.5
18 months	126.6–158.4	107.4–134.8
24 months	133.3–166.7	113.1–141.9

Frequently Asked Questions

Adult Tibetan Mastiffs weigh 70–150 lbs (males: 70–150 lbs; females: 59–132 lbs). Males weigh 90-150 pounds, females 70-120 pounds; the breed should be powerful and imposing but not excessively heavy or cumbersome..

Height plateaus around 15–24 months for the Tibetan Mastiff, with males reaching 150 lbs and females 132 lbs at maturity. As a working breed from Tibet, they continue filling out for several months after reaching full height.

For a Tibetan Mastiff at healthy weight (70–150 lbs), you should feel ribs without pressing hard, see a defined waist from above, and notice an abdominal tuck from the side. As a giant-sized working breed, maintaining lean body condition is critical for joint health and can extend lifespan by 1–2 years.

A Tibetan Mastiff puppy growing toward 70–150 lbs needs carefully measured portions. Feed 3–4 times daily until 6 months, then twice daily. With moderate energy levels (2/5), avoid overfeeding to prevent excess weight gain. Monitor body condition weekly and adjust as needed.

Poor weight gain in a Tibetan Mastiff puppy warrants a vet visit. For a breed that should reach 70–150 lbs at maturity, slow growth can signal parasites (very common in puppies), underfeeding, food intolerance, or illness. Regular weigh-ins help track progress objectively. Your vet will likely run a fecal test and blood work.