✓ Verified · Reviewed datavaries by registry
Chihuahua
Toy breed from Mexico
Breed overview
Reviewed · Database recordAbout the Chihuahua
The Chihuahua is a toy breed originating from Mexico, known for being the world's smallest dog breed. They have a bold and confident personality despite their tiny size. Their coat can be short or long, smooth, flat, or wavy. Temperament traits include being alert, devoted, intelligent, confident, courageous, and lively. However, individual dogs may vary. They have an estimated adult weight of 1–3 kg and height of 13–20 cm for both sexes. Lifespan data is not available from the supplied facts. Their energy and trainability scores are moderate (3 out of 5). Grooming and shedding scores are low (2 out of 5). They are highly suitable for apartment living (score 5), but less suitable for households with children (score 2) or other dogs (score 2).
Quick facts
Chihuahua at a glance
Sizetoy
Breed groupToy
OriginMexico
LifespanPending
Male weight1–3 kilogram
Female weight1–3 kilogram
Male height13–20 centimetre
Female height13–20 centimetre
Origin and history
Where the breed comes from
The Chihuahua is an ancient breed descended from the Techichi dogs of the Toltec civilization. It was refined in the Mexican state of Chihuahua and standardized in Mexico and the United States. The breed was recognized by the American Kennel Club in 1904, but recognition status varies by registry. The exact timeline of its development is not fully documented, and some details remain uncertain. The breed's history is tied to Mexico, but the precise origins before the Toltec period are not clearly established.
Physical characteristics
Structured dataSize, build and coat
Female
1–3 kilogramAdult weight13–20 centimetreAdult heightCoat typesShort, Long, Smooth, Flat, WavyCoat colorsPendingRecognitionvaries by registryData methodai assisted draft
Temperament
Typical breed tendencies
Alertdevotedintelligentconfidentcourageouslively
Breed tendencies are general guidance. Individual behavior depends on genetics, socialization, training, health and environment.
Exercise, training and maintenance
1–5 methodologyDaily care profile
Moderate compared with other breeds
Moderate compared with other breeds
Lower coat-maintenance demand
Lower shedding tendency
Family suitability
Home and household fit
Supervise every dog–child interaction.
Introductions and socialization still matter.
Exercise, enrichment and noise tolerance affect fit.
Climate suitability
Modelled tendency · medium confidence
Modelled tendency · medium confidence
Modelled tendency · medium confidence
A general morphology-based tendency. Individual dogs still require shade, shelter, water, acclimation and weather-appropriate activity. Method: climate-morphology-v1.
Health overview
Veterinary sources requiredHealth considerations
No Chihuahua-specific screening programme or peer-reviewed disorder-prevalence study is currently attached to this profile. This is not evidence that the breed has no health risks. Owners should use routine preventive veterinary care and discuss screening appropriate to the individual dog's history, examination and family line.
Veterinary disclaimer: This profile is educational and does not replace examination, diagnosis or treatment by a veterinarian.
Feeding overview
Nutrition and feeding
Research in progress
Reviewed feeding guidance will appear after an approved source is imported and editorially reviewed.
Decision support
Potential advantages and challenges
Research in progress
Editorially reviewed pros and cons will appear after an approved source is imported and editorially reviewed.
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Compare this breed
Growth chart
Chihuahua puppy growth
Modeled estimates
Open interactive chart From puppy weight to adult size
Compare male and female growth, check weight by age and estimate mature size.
Adult male weight1–3 kilogramAdult female weight1–3 kilogramGrowth modeladult-range-size-model-v1
Preview only. Open the complete chart to adjust age, current weight and measurement units.
Frequently asked questions
Common questions
What is the size and lifespan of a Chihuahua?
Adult Chihuahuas have an estimated weight of 1–3 kg and height of 13–20 cm for both males and females. Lifespan data is not provided in the available facts.
What is the temperament of a Chihuahua?
Chihuahuas are described as alert, devoted, intelligent, confident, courageous, and lively. However, individual dogs may not exhibit all these traits consistently.
How much exercise does a Chihuahua need?
Their energy score is 3 out of 5, indicating moderate exercise needs. They are suitable for apartment living, but specific exercise requirements are not detailed.
What are the grooming requirements for a Chihuahua?
Grooming score is 2 out of 5 (low maintenance). They have short or long coats that are smooth, flat, or wavy. Shedding score is also 2 out of 5.
Is a Chihuahua good for households with children or other dogs?
Child suitability score is 2 out of 5, and dog compatibility score is 2 out of 5, suggesting they may not be ideal for homes with young children or multiple dogs. Individual temperament varies.
Where does the Chihuahua originate from?
The breed originates from Mexico, descended from the Techichi dogs of the Toltec civilization. It was refined in the state of Chihuahua and standardized in Mexico and the US.
Is the Chihuahua recognized by major kennel clubs?
Recognition status varies by registry. The American Kennel Club recognized the breed in 1904, but other registries may have different recognition dates or statuses.
Data transparency
✓ Published · VerifiedSources and review status
APIThe Dog API ↗The Dog API Terms of Service (effective 2023-07-01)
VETERINARY SOURCEWSAVA Global Nutrition Guidelines and Toolkit ↗Copyright; factual citation and original summary only
Image source: The Dog API. Last reviewed 7/20/2026.