🧮 Use the Shih Tzu Feeding Calculator →
Enter your shih tzu's weight to get personalised daily portions in grams and cups.
About the Shih Tzu
Shih Tzus are low-energy companion dogs with moderate caloric needs. They can be picky eaters but are prone to weight gain.
Typical adult weight: 4–7.5 kg. This range is important — a Shih Tzu at the lower end of the weight range needs significantly fewer calories than one at the upper end.
How many calories does a Shih Tzu need?
We calculate calorie needs using the veterinary RER formula: 70 × weight(kg)⁰·⁷⁵, then multiply by a lifestyle factor. For a typical neutered adult Shih Tzu, the lifestyle multiplier is approximately ×1.4.
| Weight | Daily kcal (neutered adult) | Dry kibble (3,400 kcal/kg) |
|---|---|---|
| 5 kg | 328 kcal | 96g / 0.8 cups |
| 10 kg | 551 kcal | 162g / 1.4 cups |
| 15 kg | 747 kcal | 220g / 1.8 cups |
| 20 kg | 927 kcal | 273g / 2.3 cups |
| 25 kg | 1,096 kcal | 322g / 2.7 cups |
| 30 kg | 1,256 kcal | 369g / 3.1 cups |
| 35 kg | 1,410 kcal | 415g / 3.5 cups |
| 40 kg | 1,559 kcal | 458g / 3.8 cups |
Practical feeding tips for Shih Tzus
- Weigh the food: Use a kitchen scale rather than a scoop — cup measurements are inaccurate and can vary by 20–30% depending on kibble size.
- Split into 2 meals: Most adult dogs do best with two meals per day. This reduces the risk of bloat (especially important for large breeds) and keeps blood sugar stable.
- Count treats: Treats should make up no more than 10% of daily calories. If your Shih Tzu gets regular treats, subtract their calorie value from the daily food portion.
- Recalculate every few months: Body weight and lifestyle change. Recalculate whenever your dog's weight changes by more than 5%.
- Monitor body condition: You should be able to feel your Shih Tzu's ribs with light pressure but not see them. A visible waist from above is a good sign of healthy weight.