Cat Mating Calculator
What colours will the kittens be? Write the pairing in your own words or pick the sire's and the dam's colours — the answer in seconds, free.
Write the sire's and the dam's colours, your cat's name, or the colour you want in the kittens.
1The sire's colour?
e.g. blue bicolour · golden chinchilla · a 03 · ny 11
Or tap the colour:
Rare colours
2The dam's colour?
e.g. blue bicolour · golden chinchilla · a 03 · ny 11
Or tap the colour:
Rare colours
A genetics-based simulation, not a real cat · the platform guarantees no outcome · by SANORIYAT
- Kitten colours and their likelihood
- Eyes and odd-eye chance
- Hidden genes — with evidence from a certificate
- Pairing safety and kinship
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 colour starts changing at 6–8 weeks and settles around 3–4 months.
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.