Shih Tzu Full Grown: Size & Weight
A full-grown Shih Tzu weighs about 9–16 lb and stands roughly 8–11 in tall at the shoulder.
Have a Shih Tzu puppy? Estimate its adult size
Built on the small growth curve, clamped to the breed's range.
Shih Tzu growth chart
How a small-size dog like the Shih Tzu fills out over its first months. Switch between percent of adult weight and pounds, and enter a weigh-in above to plot your puppy.
- Shih Tzu
- Your puppy
Median curves computed from ~89,000 healthy dogs aged 2–24 months in the open Salt et al. 2017 dataset (PLOS ONE, CC BY 4.0), grouped into PuppySize's five size classes.
- Shih Tzu · 9–16 lb
- Your puppy
Each shaded band shows the typical weight range at every age, with the line marking the middle of that range.
| Age | % of adult weight | Estimated weight |
|---|---|---|
| 2 months | 30% | 3–5 lb |
| 3 months | 44.2% | 4–7 lb |
| 4 months | 59.5% | 5–10 lb |
| 5 months | 70.5% | 6–11 lb |
| 6 months | 79.4% | 7–13 lb |
| 7 months | 86.7% | 8–14 lb |
| 8 months | 92.1% | 8–15 lb |
| 9 months | 96.2% | 9–15 lb |
| 10 months | 98.2% | 9–16 lb |
| 11 months | 100% | 9–16 lb |
| 12 months | 100% | 9–16 lb |
How confident is this estimate? Based on an official breed standard or cross-checked veterinary/registry sources.
About this breed's data: Both weight AND height are in the AKC standard: weight 9-16 lb; height 8-11 in (ideal 9-10.5). Standard calls it a toy dog, but the 9-16 lb figure lands in the small band.
Sources: AKC Official Standard of the Shih Tzu (PDF), Salt et al. 2017 (PLOS ONE) growth data.
Shih Tzu questions
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