Use this Tibetan Mastiff puppy weight calculator to predict how big your puppy will get. Tibetan Mastiffs are a giant guardian breed that keeps growing until around 24-36 months.
Enter your puppy's current weight and age to predict their adult size
Estimates based on breed growth curves. Individual dogs vary with genetics and nutrition — check with your vet for a personalized read.
Slows fast eaters, can aid digestion, holds 4 cups dry or wet food — sized for giant breeds.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
| Age | Weight |
|---|---|
| Birth | 1 to 5 lbs |
| 2 Months | 6 to 15 lbs |
| 3 Months | 11 to 30 lbs |
| 4 Months | 18 to 45 lbs |
| 5 Months | 25 to 60 lbs |
| 6 Months | 32 to 75 lbs |
| 7 Months | 39 to 90 lbs |
| 9 Months | 46 to 105 lbs |
| 10 Months | 53 to 120 lbs |
| 1 Year | 60 to 135 lbs |
| 1.5 Years | 67 to 150 lbs |
| 2 Years | 70 to 150 lbs |
Estimated from typical giant-breed growth curves and the Tibetan Mastiff's adult weight range. Individual puppies vary — use the calculator above for a prediction based on your puppy's actual current weight.
New breed data, growth tips, and puppy-parenting insights, plus our free printable puppy growth tracker.
Prone to hip and elbow dysplasia given the breed's giant size, and hypothyroidism also occurs.
A large-breed puppy formula through the (notably slow) growth period; adults do well on a quality diet with portion control.
The thick double coat sheds heavily during seasonal blowouts and needs regular brushing during those periods.
Independent and protective by nature — early socialization and an experienced handler matter given the breed's size and guarding instincts.
An ancient Himalayan livestock-guardian breed, historically used to protect flocks and villages from wolves and leopards.
Independent and protective, Tibetan Mastiffs are calm with family but genuinely serious guardians, not casual companions.
