Tracking the growth of your Shih Tzu is essential to ensure they stay healthy and develop properly. Knowing the ideal weight at each stage helps you detect issues early and maintain proper nutrition.
This guide provides a simple weight chart by age along with tips to keep your Shih Tzu at a healthy weight.
Shih Tzu Weight Chart by Age
| Age | Average Weight |
|---|---|
| 1 Month | 1.5 – 2.5 lbs |
| 2 Months | 2 – 4 lbs |
| 3 Months | 4 – 6 lbs |
| 4 Months | 5 – 8 lbs |
| 5 Months | 6 – 9 lbs |
| 6 Months | 7 – 10 lbs |
| 9 Months | 8 – 12 lbs |
| 12 Months (Adult) | 9 – 16 lbs |
👉 Most Shih Tzus reach their full adult weight by 10–12 months.
Understanding Your Shih Tzu’s Growth
Puppy Stage (0–6 Months)
- Rapid growth period
- Requires high-quality puppy food
- Frequent feeding (3–4 times daily)
Adolescent Stage (6–12 Months)
- Growth begins to slow
- Transition to adult food gradually
- Monitor weight closely
Adult Stage (1 Year and Older)
- Weight stabilizes
- Maintain balanced diet and exercise
- Prevent obesity
Factors That Affect Weight
1. Genetics
Some Shih Tzus are naturally smaller or larger depending on their lineage.
2. Diet
- High-quality food supports healthy growth
- Overfeeding can lead to obesity
3. Activity Level
Active dogs tend to maintain a healthier weight.
4. Health Conditions
Underlying issues may affect weight gain or loss.
Tips to Maintain a Healthy Weight
- Feed measured portions
- Avoid too many treats
- Provide daily exercise
- Monitor weight regularly
- Schedule regular vet checkups
Signs Your Shih Tzu Is Overweight
- Difficulty moving or exercising
- No visible waistline
- Excess fat around ribs
Signs Your Shih Tzu Is Underweight
- Visible ribs and bones
- Low energy
- Poor coat condition
Frequently Asked Questions
What is the ideal weight for an adult Shih Tzu?
Most adult Shih Tzus weigh between 9 and 16 pounds.
When is a Shih Tzu fully grown?
They are usually fully grown by 10 to 12 months.
How can I tell if my Shih Tzu is overweight?
Check for a lack of waistline and difficulty feeling the ribs.
How often should I weigh my Shih Tzu?
Weigh your dog once a month to monitor growth and health.
Conclusion
Monitoring your Shih Tzu’s weight by age is an important part of responsible pet care. By following a proper diet, ensuring regular exercise, and keeping track of growth, you can help your dog maintain a healthy weight throughout life. A well-managed weight contributes to a longer, happier, and healthier life for your Shih Tzu.