Easily predict your kitten’s coat colour, pattern, and traits with our interactive Cat Coat Genetics Calculator.
Spread the fun, let others explore kitten coat genetics with this tool!
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Cat Coat Genetics Calculator – Predict Your Kitten’s Coat Traits

Welcome to the Cat Coat Genetics Calculator, the ultimate tool for cat lovers, breeders, and pet owners who want to predict the coat colour, pattern, and traits of kittens based on their parent cats. Whether you’re curious about feline coat genetics or planning your breeding program, this kitten coat genetics calculator provides accurate and easy-to-understand results.
How the Cat Coat Genetics Calculator Works
Every cat’s coat color is determined by its genes, which control colour, pattern, dilution, and white spotting. Our feline cat coat color calculator uses known inheritance patterns to predict possible kitten coat outcomes.
Key factors in cat coat genetics include:
- Breed – Different breeds carry distinct coat colour and pattern genes. For example, Siamese cats have the colourpoint gene, while Maine Coons can show tabby patterns.
- Colour – Genes for colours like black, blue, red, cream, chocolate, and lilac determine the base coat.
- Pattern – Patterns such as solid, tabby, tortoiseshell, and colourpoint are controlled by pattern genes.
- Dilution – The dilution gene affects the intensity of coat colour (e.g., black becomes blue, red becomes cream).
- White Spotting – The S-locus gene determines whether a cat has white spots or a full white coat.
By entering the traits of the mother and father cats, this cat coat trait calculator predicts the possible coat trait combinations in kittens, helping breeders and cat owners understand phenotype vs. genotype outcomes.
Why Use a Cat Coat Genetics Calculator?
Using a cat colour genetics calculator offers multiple benefits:
- Plan Your Breeding – Predict kitten coat outcomes based on parent genetics, including recessive and dominant genes.
- Educational Purpose – Learn how cat coat colour genes, pattern genes, and epistasis influence kittens.
- Breed-Specific Predictions – Tailor your predictions for specific breeds like Persian, Maine Coon, Siamese, Bengal, or British Shorthair.
- Avoid Surprises – Understand possible colour, pattern, and white spotting combinations before kittens are born.
This tool is perfect for breeders, veterinarians, and pet owners looking to make informed decisions and explore feline coat genetics.
Also want a calendar for cat care, check out our cat care schedule generator
How to Use the Calculator
- Select the mother cat’s traits: breed, colour, pattern, dilution, and white spotting.
- Select the father cat’s traits using the same categories.
- Click Calculate Kitten Traits.
- View the possible kitten coat outcomes, including combined colours, patterns, and white markings.
Our cat coat color genetics calculator also shows if the data is incomplete, prompting you to enter all traits for accurate results.
Understanding Cat Coat Genetics Terms
- Agouti Locus – Determines whether a cat’s hairs are banded, creating patterns like tabby.
- B-Locus – Controls chocolate and cinnamon colours.
- O-Locus – Responsible for red and cream colours.
- White Spotting Gene (S-locus) – Causes white patches or full white coats.
- Dilution Gene (d/d) – Reduces pigment intensity.
- Pattern Genes – Determine whether a cat is solid, tabby, colourpoint, or tortoiseshell.
- Phenotype vs Genotype – The visible traits (phenotype) may differ from the actual genetic makeup (genotype).
Understanding these inheritance patterns in cat coat genetics is essential for accurate predictions and educational insights.
Tips for Breeders and Cat Owners
- Combine parent cats with complementary genes to achieve desired kitten traits.
- Use this calculator to estimate probabilities of rare coat colours like chocolate, lilac, or tortoiseshell.
- Learn about dominant vs recessive traits, including which traits may skip a generation.
- Keep track of breed-specific coat genetics, as certain traits are more common in breeds like Siamese, Persian, Maine Coon, or Bengal.
Our Cat Coat Genetics Calculator is a powerful, easy-to-use tool for anyone interested in predicting kitten coat traits. It incorporates all key coat gene patterns, dilutions, and white spotting, making it suitable for breeders, cat enthusiasts, and educators. Use this kitten coat genetics calculator to explore feline coat inheritance, plan breeding strategies, or simply satisfy your curiosity about what your kittens will look like.
Frequently Asked Questions (FAQs)
1. What is a Cat Coat Genetics Calculator?
A Cat Coat Genetics Calculator is a tool that predicts the coat colour, pattern, and traits of kittens based on the genetics of the mother and father cats. It helps breeders and cat owners understand possible outcomes before kittens are born.
2. How does the kitten coat genetics calculator work?
The calculator uses known feline coat genetics, including colour genes, pattern genes, dilution, and white spotting, to estimate the phenotype of kittens from the traits of both parent cats.
3. Which cat traits can I enter in the calculator?
You can input breed, coat colour, pattern, dilution, and white spotting for both the mother and father cats. The tool combines these traits to predict all possible kitten coat outcomes.
4. Can this tool predict rare coat colours or patterns?
Yes! By considering dominant and recessive genes, the calculator can suggest even less common coat colours like chocolate, lilac, or tortoiseshell patterns, based on the parents’ traits.
5. Is this tool useful for breeders or casual cat owners?
Absolutely. Breeders can plan matings and select parent cats for desired traits, while cat lovers can satisfy curiosity about what their kittens might look like.
6. What’s the difference between phenotype and genotype in cat coats?
Phenotype: The visible traits of a cat, such as its colour, pattern, and markings.
Genotype: The actual genetic makeup that may or may not be visible in the phenotype. The calculator predicts the phenotype from parent genotypes.
7. Does the calculator work for all cat breeds?
Yes, it includes breed-specific coat traits for popular cats like Siamese, Persian, Maine Coon, Bengal, and British Shorthair, as well as general feline coat genetics for mixed breeds.
8. Can I share the results with others?
Yes! The tool is designed to be interactive and shareable. You can copy or screenshot the results to share with friends, breeders, or cat communities.
9. What if I don’t know all the parent traits?
The calculator will indicate incomplete data for traits you haven’t entered. For best predictions, try to fill in all five categories: breed, colour, pattern, dilution, and white spotting.
10. Is the Cat Coat Genetics Calculator educational?
Yes, it’s a great learning tool for understanding cat coat inheritance, dominant vs recessive genes, epistasis, and trait combinations. Perfect for students, breeders, and curious cat owners.
