Dog Weight Guide
How Much Should a Shih Tzu Weigh?
Complete weight guide for the Shih Tzu — from puppy to adult — with a growth chart, body condition tips, and health advice.
Ideal Adult Weight
4–8 kg
Small breed · Origin: China/Tibet
Shih Tzu Weight Chart by Age
Expected weight ranges at each growth stage. Individual dogs vary — use these as a guide, not a guarantee.
| Age | Expected Weight |
|---|---|
| 8 weeks | 0.9–1.8 kg |
| 3 months | 1.4–2.9 kg |
| 4 months | 2.1–4.2 kg |
| 6 months | 2.8–5.6 kg |
| 8 months | 3.4–6.8 kg |
| 10 months | 3.8–7.6 kg |
| 12 months (adult) | 4–8 kg |
* Approximate values. Females are typically 10–15% lighter than males.
Is My Shih Tzu a Healthy Weight?
⬇️ Underweight
- • Ribs, spine and hip bones clearly visible
- • No fat coverage
- • Prominent waist and tummy tuck
- • Low energy or coat issues
✅ Ideal Weight
- • Ribs felt easily, not visible
- • Waist visible from above
- • Slight abdominal tuck
- • Good muscle tone and energy
⬆️ Overweight
- • Ribs hard to feel under fat
- • No visible waist from above
- • Rounded, sagging belly
- • Reluctance to exercise
Keeping Your Shih Tzu at a Healthy Weight
-
Feed the right amount
Adult Shih Tzus need 300–500 kcal/day. Use our food calculator to dial in exact portions.
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Meet daily exercise needs
Shih Tzus need about 20 minutes of exercise per day. Regular activity is the most effective weight management tool.
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Limit treats
Treats should make up no more than 10% of daily calories. Use kibble or low-calorie treats for training.
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Weigh monthly
Weigh your dog at least once a month on the same scale. Early weight gain is much easier to address than established obesity.
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Annual vet check-ups
Your vet can spot weight changes you might miss and check for underlying conditions that cause weight gain.
Frequently Asked Questions
How much should a Shih Tzu weigh?
An adult Shih Tzu should weigh between 4 and 8 kg. Males are typically at the higher end of the range and females at the lower end.
When is a Shih Tzu fully grown?
Most Shih Tzus reach their full adult weight around 12 months.
Is my Shih Tzu overweight?
You should be able to feel your Shih Tzu's ribs without pressing hard, and see a visible waist when viewed from above. If neither is true, speak to your vet about a weight management plan.