Shih Tzu Growth Chart
Shih Tzus are sturdy toy-type companions with a broad head and short legs. Growth slows after the first year but body condition still matters. Regular grooming weight checks help spot trends without stressing the dog.
Shih Tzu weight by age
Typical weight ranges based on Shih Tzu adult size and standard growth curves. Individual puppies may vary.
| Age | Expected weight (low–high) |
|---|---|
| 8 weeks | 1.6–4.9 lb |
| 12 weeks | 2.5–6.4 lb |
| 16 weeks | 3.2–7.8 lb |
| 20 weeks | 3.9–9.1 lb |
| 24 weeks | 4.6–10.2 lb |
| 32 weeks | 5.8–12.5 lb |
| 40 weeks | 7–14.6 lb |
| 1 year | 8.2–16 lb |
Calculate Your Shih Tzu Puppy's Adult Weight
Enter your Shih Tzu puppy's age and current weight for an estimated adult weight range.
Enter your puppy's details to see the estimate
Shih Tzu FAQ
How much will my Shih Tzu puppy weigh as an adult?
Enter your puppy's age and current weight in this calculator. Typical adult Shih Tzu ranges depend on sex, genetics, and whether the puppy is on a steady growth curve.
At what age is a Shih Tzu fully grown?
Most Shih Tzu dogs reach most adult weight between 10 and 18 months depending on size. Larger individuals may keep filling out slightly longer while bone and muscle finish developing.
How accurate is a Shih Tzu puppy weight chart?
Charts reflect typical trends, not guarantees. Individual puppies may finish above or below the estimated range based on parents, nutrition, and overall health.