Calculate the adult weight for your Shih Tzu. Just type your puppy’s current weight and age, and see how big your puppy gets.
Weight Predictions
Predicted Adult Weight
Based on current weight and age progression
AKC Breed Standard
Official AKC weight range for this breed
Breed Average
Average weight for this breed and gender
Growth Timeline
Important Notes
- These predictions are estimates based on breed standards and growth patterns
- Individual dogs may vary significantly from these predictions
- Factors like nutrition, health, and genetics affect final adult weight
- Consult your veterinarian for personalized growth assessments
Shih Tzu Breed Overview
The Shih Tzu is a charming and affectionate toy breed that originated in China, where it was prized as a royal companion. Known for its flowing coat, short muzzle, and friendly temperament, the Shih Tzu thrives on human companionship and adapts well to apartment living. Despite their regal appearance, they are playful, alert, and make excellent family pets.
As a small breed, Shih Tzus mature more quickly than larger dogs, often reaching their full size before their first birthday. However, tracking their growth is important because they can be prone to weight gain if overfed or under-exercised, which can put stress on their joints and spine (American Kennel Club).
Shih Tzu Growth Chart & Weight Ranges
| Age | Average Weight (Male) | Average Weight (Female) |
|---|---|---|
| 4 weeks | 1–1.5 lbs (0.45–0.68 kg) | 0.9–1.4 lbs (0.4–0.64 kg) |
| 8 weeks | 2–3 lbs (0.9–1.36 kg) | 1.8–2.8 lbs (0.8–1.27 kg) |
| 3 months | 4–5.5 lbs (1.8–2.5 kg) | 3.5–5 lbs (1.6–2.27 kg) |
| 6 months | 7–9 lbs (3.18–4.08 kg) | 6–8 lbs (2.72–3.63 kg) |
| 9 months | 9–11 lbs (4.08–4.99 kg) | 8–10 lbs (3.63–4.54 kg) |
| 12 months | 9–16 lbs (4.08–7.26 kg) | 9–16 lbs (4.08–7.26 kg) |
Note: While males and females often fall within the same adult weight range, males can sometimes be slightly more muscular and weigh 0.5–1.5 lbs more.
How Much Bigger Will My Shih Tzu Puppy Get?
Shih Tzu puppies generally reach 50% of their adult weight by around 3–4 months. A simple way to estimate their adult size is to double their weight at 16 weeks.
Note: Most Shih Tzus achieve their full height by 8–10 months and will typically reach their adult weight by 10–12 months. Their coat will continue to mature in texture and length even after body growth is complete.
Shih Tzu Growth Tips
Nutrition
- Feed a high-quality small-breed puppy food that is rich in protein and fat to support rapid early growth.
- Offer 3–4 small meals daily until 6 months of age, then reduce to 2 meals per day.
- Monitor weight closely—Shih Tzus tend to gain weight quickly if overfed.
Exercise
- Provide short walks and supervised play to maintain healthy muscle tone.
- Avoid excessive jumping or rough play that could strain their back or knees.
Health Watch
- Growth-related concerns include patellar luxation, intervertebral disc disease, and brachycephalic airway issues (Shih Tzu Club).
- Maintain a lean physique and schedule regular veterinary checkups to monitor development.
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