Shih Tzu Weight Calculator
Check if your Shih Tzu is at a healthy weight. Ideal target: 9 - 16 lbs (Male) or 9 - 16 lbs (Female).
Weight Analysis for Buddy
50.0 lbs
45 - 55 lbs
Ideal
Import Buddy into the main Pet Age Dashboard to see biological age shifts, daily RER calorie metrics, and expected remaining years.
Breed Weight Standards
For the Shih Tzu, standard weights are:
- Male Ideal: 4 - 7.2 kg (9 - 16 lbs)
- Female Ideal: 4 - 7.2 kg (9 - 16 lbs)
Shih Tzu Healthy Weight Standard Chart
Veterinary breed standard weight ranges and boundaries for adult male and female Shih Tzus.
| Gender | Healthy Range (lbs) | Healthy Range (kg) | Target Average | Underweight Alert | Overweight Alert |
|---|---|---|---|---|---|
| Male | 9 - 16 lbs | 4 - 7.2 kg | 13 lbs (5.6 kg) | < 8 lbs | > 18 lbs |
| Female | 9 - 16 lbs | 4 - 7.2 kg | 13 lbs (5.6 kg) | < 8 lbs | > 18 lbs |
🔍 Assessing Shih Tzu Body Condition (BCS)
Scale weight is only one component of body composition. A Shih Tzu in ideal body condition (BCS 4-5 out of 9) demonstrates:
- Rib Palpation: Ribs easily felt with gentle pressure, without excess fat cover.
- Top-Down Silhouette: Clear, discernible hourglass indentation behind the ribcage.
- Lateral Abdominal Tuck: Upward curve of the belly when viewed from profile.
⚠️ Excess Weight & Shih Tzu Health
Excess body fat acts as an endocrine organ, secreting pro-inflammatory cytokines that accelerate cellular aging and joint cartilage breakdown.
For a Shih Tzu, keeping weight near the optimal average (13 lbs male / 13 lbs female) lowers the lifetime risk of Renal Dysplasia and Dry Eye.
Frequently Asked Questions: Shih Tzu Weight
Veterinary guidance on managing weight, growth rates, and health for Shih Tzus.
What is the ideal weight for a male Shih Tzu?
A healthy adult male Shih Tzu should typically weigh between 9 and 16 lbs (4 to 7.2 kg), with an ideal median target of approximately 13 lbs (5.6 kg).
What is the ideal weight for a female Shih Tzu?
A healthy adult female Shih Tzu should typically weigh between 9 and 16 lbs (4 to 7.2 kg), with an ideal median target of approximately 13 lbs (5.6 kg).
How can I tell if my Shih Tzu is overweight?
Evaluate your Shih Tzu's Body Condition Score (BCS): when viewed from above, an hourglass waistline should be clearly discernible behind the ribcage. When palpating the chest with light pressure, you should easily feel their ribs without pressing through a dense layer of subcutaneous fat.
How does excess weight affect a Shih Tzu's lifespan?
Veterinary research demonstrates that maintaining a lean body condition extends canine median lifespan by up to 1.8 to 2.5 years. Overweight dogs suffer from accelerated osteoarthritic cartilage erosion and aggravated breed risks such as Renal Dysplasia and Dry Eye.
Explore More Shih Tzu Health Calculators
Access complementary biological tools pre-configured for Shih Tzu standards: