Cavalier King Charles Spaniel Chihuahua Mix (Chilier, Cavachi) Breed Profile

By John Martin - October 24, 2021

Cavalier King Charles Spaniel Chihuahua playing in park

The majority of dog owners love purebred dogs, but their hearts completely melt at the sight of a mix-bred dog, like Chilier, so if you are one of them, or you are going to buy a Chilier, then this guide is for you. You will get to know everything about your pup here so you can understand them fully.

The Chilier are small designer dogs with few prominent features like large bulging eyes and erect or droopy ears depending on the dominant parent gene; they are loyal, outgoing, and quite friendly. They are quite popular due to their nature in the mix-breed dogs’ category, so let’s see what they are like without waiting.

At a Glance

  • Height: 8 inches to 10 inches.
  • Weight: 6 pounds to 12 pounds (depending on the dominant genes).
  • Lifespan: Anywhere between 10-16 years on average.
  • Group: Mix Breed (Cavalier King Charles Spaniel and Chihuahua Mix).
  • Temperament: Affectionate, Stubborn, Intelligent, Loyal, and Outgoing.
  • Most Suitable For: Households are new pet owners, have a family, or live in apartments.

Chilier Origin

Chilier is a blend between two adorable pups, Cavalier King Charles Spaniel and Chihuahua. They are called by names like Cava Chi and Cavachi. This designer dog is a family-oriented pup and an extremely affectionate, playful, and happy pup that quickly bonds with the family.

The Chihuahua comes from Mexican heritage and is a descendant of an old pup known as Techichi Dog. They were bred for companionship, religious ceremonies, food, and rituals, while Chihuahuas are usually bred for companionship since the 1900s.

The Cavalier King Charles Spaniel was previously known as Toy Spaniels and has been associated with royals like King Charles I and King Charles II. The American Kennel Club officially recognized this pup in 1995. Since then, they have been quite popular with people, have a good nature, and can easily be motivated by food.

Though, you will never completely guess whether your Chilier will have more characteristics of a Chihuahua or of a Cavalier King Charles Spaniel as the genes transferred during breeding cannot be guaranteed in amounts. But traits like being playful, companionship, friendly, happy dog, pleasing nature, affectionate and more are confirmed to be present in them as both of their parents have these qualities.

Cavalier King Charles Spaniel Chihuahua Mix Pedigree

A pup’s pedigree is their lineage record, which is usually made and kept for purebred dogs. The pups are registered in the American Kennel Club, but your Chilier is a mix-bred pup, and that is why it is produced as a new breed known as the designer dogs.

With Chihuahua and Cavalier King Charles Spaniel as parentages, your Chilier is the first-generation pup of two purebred dogs. These pups are considered quite healthy compared to the next generations and are said to have half and half ratios of traits and appearance of their parents, but then again, it depends on the parent dog and the way they have been bred.

Due to the fact, the Chilier is a designer dog, and there is no exact ratio of traits and appearance you will achieve by breeding both Chihuahua and Cavalier King Charles Spaniel. Every time they are bred, the offspring will have different characteristics and behaviors. Some offspring will have dominant characteristics of a Chihuahua, while others may show dominancy of Cavalier King Charles Spaniel’s traits; it depends totally on how the genes are distributed while breeding.

Cavachi Characteristics

After knowing the basic details such as origin, pedigree, and more, it is crucial to know about the basic characteristics of your pup, such as the grooming, reaction to training, diet, temperament, and more. This way, you can know what type of dog you are getting and how you can handle it, so without wait let’s move on to the next heading.


Behavior is important to know when adopting a dog as this determines how they will live in your house. For example, Chilier is generally considered an outgoing, companion type, friendly and loyal pup, but they show hints that Chihuahua stubbornness is not properly socialized and trained.

To avoid this aggressive behavior of theirs’, it is better to train them properly. In general, Chiliers are loyal and loving towards their family and bond quite closely with their owners. However, they love meeting new people and are on best behavior around strangers, making them unsuitable as an ideal watchdog.


Chilier is generally the type to put on weight with ease as these pups have an above-average tendency to put on weight, so it is important that they are kept active and provided with a high-quality diet. The diet should be suitable to their size, age, and activity level and should be nutrient-rich to get all the good stuff.

You do not want to over-feed your pup as it will do more harm than good, so you should always feed your pup in smaller meals with few breaks, like two to three times a day. In addition, you should give them a high-quality diet and portions so that they keep healthy and maintain their weight to avoid mobility and joint issues in the future.


With Chilier, you require patience in training as this pup is a mix of two amazing and bright dog breeds, but they can get their stubbornness from their parent breed, Chihuahua, making training difficult. Therefore, you need to have a firm and consistent training plan for them and have to stat patient.

You need to start their socializing when they are quite young as they can become extremely aggressive towards other people and pets if not socialized and trained properly. To train them properly, you definitely can try the reward-based approach that their parent Cavalier King Charles Spaniel, loves and gets the best results. Alternatively, you can always hire a professional dog trainer to get the best training for them.


A Chilier has a long and silky coat that requires low to moderate grooming sessions, and this pup also sheds very less which makes them ideal for people who avoid regular cleaning of their house. However, you have to inspect and wipe out their floppy ears on a weekly basis to avoid situations such as a buildup of debris and various ear infections.

The best thing about Chilier is that they do not need consistent baths and only need a bath when needed as their skin can easily dry out due to the regular baths. Moreover, they only need two to three brushing sessions per week, making them easy to keep and clean.

Healthy Life

To provide your pup with a healthy and great lifestyle, you must know a few basic factors of their life, such as their ideal weight, exercise routines, health issues, and life expectancy, to understand them better. This way, you will know what to expect when it comes to their health and how you can provide them with a healthy lifestyle.

Life Expectancy

Whether a purebred dog or a mixed breed dog, they all are part of our lives when we bring them to our home, and then they become our family members. But, unfortunately, dogs also die just like human beings, which can leave the whole family in depressed and quiet downstate for a long period of their time, especially for the kids that are extremely attached to their best friend in the form of a pup.

In such a scenario, it is important to know what will be the life expectancy of your dog so that you know their life span when you bring them home and get attached to them. So, a Chilier has an average life expectancy of anywhere from 10 to 16 years on average.


Weight plays an important role in a pup’s health, and in the case of Chilier, it is something you should definitely keep an eye on as their weight can cause many health problems. This pup gains weight at lightning speed and requires a healthy diet and proper exercise to avoid this weight gain.

This mixed breed can take on weight from either one of their parents, and it is important to know their weight ranges so that you can keep an eye out for future joint or mobility issues. So usually, on average, a Chilier weighs anywhere in between 6lbs to 12lbs.

Exercise Requirements

Even though Chilier is a small-sized pup, it needs daily walks and outside visits the parks to be kept active, mentally stimulated, and complete its socialization needs. These pups are quite good even if they are kept inside the house, but they require indoor playtime, so they do not become destructive or bored.

A Chilier loves puzzles or interactive toys, and these can be a great addition to their regular exercise routines. It is important to know that you need to take your pup out to meet with other dogs at an early age so that they can socialize and you can avoid their stubborn or aggressive behaviors in the future, as well as keep them active.

Health Issues

There is a high chance that a designer dog can avoid common health issues present in their pure parent breed, but it is important to know what they might inherit from their parents so you can get tests done and get them treated. For example, the Chilier have large eyes due to their parents and have long and silky coats.

These pups can inherit various eye issues because of their pronounced eyes that come from their Cavalier King Charles Spaniel side and can also suffer from issues like Patella luxation, joint issues, and Hypoglycemia.


Here we conclude our guide on the adorable Chilier dog breed. So if you are planning to adopt one, then make sure to adopt them from a reputed dog breeder. The Chilier loves to be affectionate, social, extremely lovable, and intelligent and can also be conscious and stubborn sometimes, so consider all these things before deciding as they will want to stay with you forever.