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Maine Coon Color & Genetics Calculator: Predict Your Kitten’s Coat Before They’re Even Born

Use our free cat genetics calculator to predict Maine Coon kitten coat colors & patterns. Select parent genotypes, get instant results with visual swatches.

Top Predicted Color (tap for details) Calculating...

Maine Coon Color & Genetics Calculator

Select the genotype of each parent for every gene to predict the possible coat colors, patterns, and traits of their kittens.

Red / Orange (X-Linked)
Dilution
Agouti (Tabby vs Solid)
Tabby Pattern
Inhibitor (Silver / Smoke)
Wide Band (Cameo / Shell)
White Spotting (Bicolor / Van)
White Masking (Solid White)
Polydactyl (Extra Toes)

Most Likely Kitten Color

Calculating...

🧬 Additional Trait Odds

⚠️ Disclaimer: This calculator uses simplified, educational Punnett-square genetics and color-name swatches (not real photos). Actual kitten coloring can vary, and some rare modifier genes are not included. For accurate breeding predictions, consult a feline geneticist or DNA test your cats.
🤲 A gentle reminder: No calculator can fully predict what a litter will look like — every kitten's exact color and markings are ultimately part of God's design, this tool is just for fun and learning.

I still remember sitting up at 2 a.m. with my laptop, trying to figure out what colors my Maine Coon’s next litter might actually turn out to be. I had a brown tabby sire and a silver dam, and every breeder forum I read gave me a different answer. That frustration is exactly why I built this tool. It’s a free Maine Coon color and genetics calculator that uses real Punnett-square genetics, not guesswork, to show you the most likely coat colors, patterns, and traits a litter could produce.

Whether you’re a breeder planning a pairing, or simply a curious owner wondering “what color will my kitten be,” this calculator gives you a clear, visual answer in seconds.

What This Cat Genetics Calculator Actually Does

Most kitten color calculators online give you a vague answer or just one possible outcome. This one is different. It works through nine separate genes, the same genes that real feline geneticists study, and runs the actual cross between your sire and dam for each one. Here’s what it covers:

  • Red (Orange) Gene – the X-linked gene responsible for red, cream, and tortoiseshell coloring
  • Dilution – determines whether a color comes out full strength (black, red) or diluted (blue, cream)
  • Agouti – decides if the kitten will have a tabby pattern or a solid coat
  • Tabby Pattern – mackerel versus classic striping
  • Inhibitor (Silver/Smoke) – the gene behind silver and smoke coats
  • Wide Band – responsible for cameo and shell coloring
  • White Spotting – bicolor and van patterns
  • White Masking – solid white coats
  • Polydactyl – the extra-toe trait Maine Coons are famous for

Once you select each parent’s genotype, the calculator instantly shows you the top predicted colors with their probability percentages, along with color swatches so you can actually visualize the outcome, not just read a genotype code that means nothing to a casual owner.

How to Use the Maine Coon Color Calculator (Step by Step)

You don’t need a genetics degree to use this. Here’s exactly how it works:

  • Select the Sire’s genotype for each gene. Dropdowns are written in plain language, not just genotype codes, so you can match your cat’s visible coat if you don’t know the exact genetics.
  • Select the Dam’s genotype the same way.
  • Results update automatically. The most likely kitten colors appear instantly, ranked by probability with color swatches.
  • Check Additional Trait Odds at the bottom for white spotting, wide band, and polydactyl predictions — these layer on top of base color independently.

No sign-up, no app, completely free.

A Quick Genetics Lesson

If you’ve wondered why two black cats can produce an orange kitten, here’s the short answer. The red gene lives on the X chromosome. Males only have one X, so they’re either red or not. Females have two X chromosomes, meaning they can carry one red and one non-red gene simultaneously which is exactly what creates a tortoiseshell coat. That’s also why tortoiseshell males are so rare; it takes a genetic anomaly.

Dilution genes don’t add color, they soften it. Black becomes blue, red becomes cream which is why blue and cream Maine Coons aren’t separate colors genetically, just diluted versions of black and red.

Faqs

Yes, no sign-up needed. Use it as many times as you want.

Every result includes a color swatch so you can see the outcome visually, not just read a gene code.

Very accurate for probabilities. It can’t guarantee every individual kitten’s exact outcome since a few rare modifier genes aren’t included, but the core logic is the same Punnett-square method professional breeders use.

Pick the option that matches their visible coat. All labels are written in plain English.

Recessive genes can stay hidden for generations and only show up in kittens. This calculator is built to surface exactly those hidden possibilities.

Yes, polydactyly is shown separately in the Additional Traits section since it’s its own independent gene.