PuppyGrowthShih Tzu growth chart (month by month)
Typical weight ranges for a healthy Shih Tzu puppy, based on the breed's adult weight and a toy-breed growth curve.
| Age | Male | Female |
|---|---|---|
| 2 months | 2.2–4.0 lb 1.0–1.8 kg | 2.2–4.0 lb 1.0–1.8 kg |
| 3 months | 3.6–6.4 lb 1.6–2.9 kg | 3.6–6.4 lb 1.6–2.9 kg |
| 4 months | 5.0–8.8 lb 2.2–4.0 kg | 5.0–8.8 lb 2.2–4.0 kg |
| 5 months | 6.1–11 lb 2.8–4.9 kg | 6.1–11 lb 2.8–4.9 kg |
| 6 months | 7.0–12 lb 3.2–5.7 kg | 7.0–12 lb 3.2–5.7 kg |
| 8 months | 8.3–15 lb 3.8–6.7 kg | 8.3–15 lb 3.8–6.7 kg |
| 10 months | 9.0–16 lb 4.1–7.3 kg | 9.0–16 lb 4.1–7.3 kg |
How big does a Shih Tzu get?
An adult male Shih Tzu usually weighs 9–16 lb (4.1–7.3 kg) and an adult female 9–16 lb (4.1–7.3 kg). Shih Tzus weigh 9–16 lb and are usually full grown by 10 months, though their coat keeps developing.
When is a Shih Tzu fully grown?
As a toy breed, a Shih Tzu typically reaches its adult weight at about 10 months. Height usually finishes first; chest and muscle keep filling out for a while after.
Use the calculator above with your puppy's current weight to see whether it is tracking low, high or right on the curve.
Frequently asked questions
How much should a 6 month old Shih Tzu weigh?
Most male Shih Tzu puppies weigh about 7.0–12 lb at 6 months, and females about 7.0–12 lb.
How much should an 8 week old Shih Tzu weigh?
Roughly 2.2–4.0 lb for males and 2.2–4.0 lb for females, though puppies vary a lot at this age.
When does a Shih Tzu stop growing?
Most Shih Tzus reach their adult weight at around 10 months.
Is my Shih Tzu puppy overweight?
Check body condition: you should feel the ribs easily without pressing hard and see a waist from above. If in doubt, ask your vet.
More free pet calculators
PuppyGrowthCalc gives general estimates for healthy pets. Every animal is different. Ask your vet about your pet's ideal weight, diet and health.