Cat Mating Calculator
Know your kittens' colours before the mating: from two colours, from your registered cats, or from both pedigrees — with real odds and evidence for every hidden gene.
- Kitten colours with odds
- Eyes and odd-eye chance
- Hidden genes with evidence
- Pairing safety and kinship
Parents and result
Pick the parents, then reveal the full result: the look, the numbers, the tiles, the genetic notes.
Describe two cats to see the colours their kittens could be.
Don't know the colour codes? Photograph both cats
A clear daylight photo of each cat — we read the colour and fill the fields below; you can adjust them. A photo reading is approximate; a certificate is more precise.
Sire (male)
Dam (female)
Sire (male)
Dam (female)
This predicts coat colour and pattern.
Why not coat length?
Coat length is set by a gene separate from the colour genes — this tool doesn't cover that gene yet.
🎯 Want a specific colour? See the pairing
A genetics-based simulation, not a real cat · the platform guarantees no outcome · by SANORIYAT
Who do I look for?
You have a cat and want a certain colour from its kittens? The calculator names the partner that gives it, and who is listed now.
My cat
Its colour and sexWhat should the kittens be?
Two-certificate analysis
The most exact the calculator gets: the sire's and the dam's certificates together.
Cat mating calculator FAQ
How does the cat mating calculator work?
Pick the sire's and dam's colours (by name or EMS code) and it computes the genetic probabilities of the kittens' colours and patterns from documented feline genetics — the base-colour, dilution, sex-linked orange, and tabby loci among others.
Is the result guaranteed?
No — genetics is probability, not certainty. The calculator honestly separates 'likely' from 'possible' outcomes and lists hidden genes the parents may carry without showing them, so a real litter can differ.
What is an EMS code?
A standardised European coding system describing a cat's breed, colour and pattern in short letters and digits — e.g. ny 11 means black golden shaded. The calculator accepts the code directly, or plain colour names.
Does it predict kitten eye colour?
It shows the expected adult eye-colour range plus strong genetic signals (like the blue eyes tied to colourpoint). All kittens are born blue-eyed; the final colour settles at roughly 6–8 weeks.
Is every pairing safe?
The calculator flags known not-recommended pairings — most notably fold-eared × fold-eared (Scottish Fold × Scottish Fold), which experts advise against for documented health reasons.
Is the calculator free?
Yes, completely free. Entering colours is open to everyone; a free SANORIYAT account reveals the full result with the predicted-litter family portrait.