Use the Daily Calorie Calculator
Shih Tzu Calorie Calculator — How to Use It
Enter your Shih Tzu's current weight and activity level above. The calculator uses the Modified NRC Resting Energy Requirement (RER) formula: calories = 70 × (body weight in kg)^0.75, then multiplied by an activity factor. This is the same method recommended by the American College of Veterinary Nutrition.
A reliable daily calorie calculator built specifically for Shih Tzus.
How Many Calories Does a Shih Tzu Need?
The Shih Tzu is an ancient toy breed that originated in Chinese imperial palaces, where they were bred as lap dogs for royalty. The name 'Shih Tzu' means 'lion dog' in Chinese. They are known for their flowing, silky coats and sweet, affectionate nature. Shih Tzus are adaptable and do well in apartments and homes alike. Like other flat-faced breeds, they can struggle with heat and heavy exercise. Their long coats require daily brushing or a short 'puppy cut' for easier maintenance.
A Shih Tzu in the typical weight range of 9–16 lbs needs roughly 347–397 calories per day at moderate activity. Dogs that get 30+ minutes of vigorous exercise daily need the higher end of this range. Neutered dogs typically need 15–20% fewer calories than intact dogs of the same weight and activity level.
Shih Tzu Feeding Guidelines by Life Stage
Puppies (under 12 months): Shih Tzu puppies need 2–3× the adult calories per pound of body weight to fuel rapid growth. Feed 3–4 small meals per day until 6 months, then reduce to twice daily. Never restrict puppy calories — growth stage nutrition is critical for bone and joint development.
Adults (1–7 years): This is when the calorie calculator is most reliable. An average adult Shih Tzu weighing 12 lbs needs approximately 347 kcal/day at moderate activity — roughly 1.0 cups of a standard 380-kcal/cup kibble, split into two meals.
Seniors (7+ years): Most senior dogs need 20–30% fewer calories than adults due to reduced activity and slower metabolism. However, Shih Tzus with joint issues may also benefit from higher-quality protein to maintain muscle mass. Talk to your vet before reducing portions significantly.
Frequently Asked Questions
Q: How many cups of food should I give my Shih Tzu per day?
A: For a 12-lb adult Shih Tzu at moderate activity, aim for 1.0–1.2 cups per day of a standard kibble (around 380 kcal/cup). Always check the specific caloric density on your dog food bag and adjust accordingly.
Q: My Shih Tzu is gaining weight. Should I reduce portions?
A: Start by reducing portions by 10% and reassessing after two weeks. Make sure treats aren't adding hidden calories — treats should account for no more than 10% of daily calories. If your dog is still gaining weight, consult your veterinarian to rule out thyroid issues.
Q: Does exercise affect how many calories my Shih Tzu needs?
A: Absolutely. A Shih Tzu getting 30 minutes of vigorous daily exercise needs roughly 20–30% more calories than one who gets only light walks. The activity multiplier in this calculator accounts for that difference.
Disclaimer: This tool provides general guidance. Always consult your veterinarian for personalized dietary advice, especially if your Shih Tzu has health conditions.