How Old Is Your Shih Tzu in Human Years?
Shih Tzus are affectionate lap dogs with centuries of companion dog heritage. These charming little dogs are known for their longevity and sweet dispositions. Understanding their age helps provide the best care.
Calculate Shih Tzu's Age
Average lifespan: 10-16 years
Disclaimer: This calculator provides estimates for informational and entertainment purposes only. Results are based on general breed averages and may not reflect your individual pet's health status. Always consult a licensed veterinarian for accurate health assessments and medical advice.
About Shih Tzu Aging
Life Expectancy
10-16 years
Average: 13.0 years
Size Category
Small
Under 22 lbs
Senior Age
9+ years
When special care is needed
First Year
≈ 15 human years
Rapid early development
How We Calculate Shih Tzu Age
Unlike the outdated "7 years" rule, our Shih Tzu age calculator uses breed-specific aging data. Shih Tzus age rapidly in their first year (equivalent to 15 human years), then 9 human years in year two, and 4 human years for each subsequent year. As a small dog, Shih Tzus often live longer than larger breeds.
Beyond Age: What's Your Shih Tzu Really Feeling?
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Frequently Asked Questions
Common questions about Shih Tzu aging and lifespan
AI AnalysisBeyond Age: What's Your Shih Tzu Really Feeling?
Calculate your Shih Tzu's age, then decode their emotions with AI analysis.
References
Sources used for Shih Tzu age and lifespan information.
- [1] "Shih Tzu Breed Information"—American Kennel Club(Breed Organization)
- [2] "Shih Tzu Health"—American Shih Tzu Club(Breed Organization)
- [3] "How to Calculate Dog Years to Human Years"—American Kennel Club (AKC)(Breed Organization)
- [4] "Quantitative Translation of Dog-to-Human Aging"—PubMed (Scientific Journal)(Research Study)
- [5] "Dog Age to Human Years: Understanding Your Dog's Age"—VCA Animal Hospitals(Veterinary Source)
- [6] "Canine Geriatrics: Overview and Age-Related Diseases"—Merck Veterinary Manual(Veterinary Source)
Similar Dog Breeds
Explore age calculators for other small dog breeds.
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Important Disclaimer
For Informational Purposes Only: The age calculations and information provided on this page are estimates based on general breed averages and scientific research. Individual pets may age differently based on genetics, diet, exercise, healthcare, and environmental factors.
Not Veterinary Advice: This calculator is not a substitute for professional veterinary care. Always consult a licensed veterinarian for accurate health assessments, diagnoses, and medical advice specific to your pet's individual needs.
AI-Generated Imagery: Images displayed on this page are AI-generated illustrations intended to represent typical breed characteristics. They may not accurately depict every variation within the breed and should not be used for breed identification purposes.
No Liability: Pet Decoder AI and its affiliates make no warranties about the accuracy of the calculations or information provided. We are not liable for any decisions made based on this information.