Shih Tzu Chihuahua Mix
Shih Tzu + Chihuahua cross. Also called: ShiChi.
The Shih Tzu Chihuahua Mix typically weighs 5-12 lbs, needs 150-350 calories per day, and lives 12-16 yrs. Size, appearance, and temperament can vary widely depending on which parent's genes are more dominant.
Size and nutrition
The Shih Tzu Chihuahua Mix can weigh anywhere from 5-12 lbs (2.3-5.4 kg), a wide range that reflects the size difference between the Shih Tzu and Chihuahua. Because mixes are unpredictable, watch your dog's actual body condition rather than targeting a specific number on the scale.
Daily calorie needs for a ShiChi range from 150-350 kcal depending on their adult size, activity level, and whether they are spayed/neutered. Use our calorie calculator with your dog's actual weight for a personalized estimate.
Get your ShiChi's exact calorie needs.
CalculateHealth risks from both parent breeds
Mixed breed dogs can inherit health conditions from either parent breed. The Shih Tzu Chihuahua Mix may be susceptible to conditions common in both Shih Tzus and Chihuahuas. Mixed breeds often benefit from hybrid vigor, but this is not guaranteed, and responsible health screening of parent dogs remains important.
Look up the health profiles for both parent breeds for a complete picture of potential health concerns:
Exercise and activity
ShiChis have low exercise needs that apartment living satisfies easily. Short walks and indoor play provide adequate activity. They are content with 20-30 minutes of daily exercise. Their small size means indoor activities like training sessions and interactive toys provide genuine physical engagement.
Care and grooming
Coat varies from the Shih Tzu's long, flowing hair to the Chihuahua's short coat or a medium-length blend. Longer coats need daily brushing and professional grooming. Eye care is important if they inherit the Shih Tzu's prominent eyes. At 5-12 lbs, they need protection from rough handling.
What to expect from a ShiChi
Sweet, loyal, and lap-oriented. ShiChis combine the Shih Tzu's affectionate nature with the Chihuahua's devotion, creating a dedicated companion dog. They prefer calm environments and may be overwhelmed by noisy, chaotic households. They bond closely to one or two people and make excellent companions for individuals or couples.
Frequently asked questions
Adult ShiChis typically weigh 5-12 lbs (2.3-5.4 kg). The wide range reflects the size difference between Shih Tzus and Chihuahuas. First-generation crosses (F1) are the most unpredictable for size. Looking at the parents' sizes gives the best estimate. Puppies that are larger at 8 weeks tend to be larger adults, but this is not guaranteed.
Daily calorie needs range from 150-350 kcal depending on your dog's actual adult size and activity level. Since mixes vary so much in size, use our calorie calculator with your dog's current weight rather than relying on breed averages. Weigh your dog monthly and adjust portions to maintain healthy body condition.
Mixed breeds often benefit from hybrid vigor, meaning their broader gene pool reduces the risk of conditions that concentrate in purebred lines. However, a Shih Tzu Chihuahua Mix can still inherit health issues common to either the Shih Tzu or the Chihuahua. Research both parent breeds' health profiles and ask the breeder about health testing of the parents. Regular veterinary checkups catch any inherited conditions early.
Tools for ShiChi owners
Disclaimer: Mixed breed characteristics vary significantly. The weight, calorie, and health information here represents the combined range of both parent breeds. Individual dogs may fall outside these ranges. Calorie estimates use the RER/MER formula (NRC 2006). Consult your veterinarian for advice specific to your dog. See our sources.
Last reviewed: April 1, 2026