Possible Male Kittens
Percentages among male kittens
Eight established coat loci · exact genotype crosses
Cat Genetics Calculator
Predict kitten coat colors, patterns and inherited traits from the sire and dam. Results are calculated separately for male and female kittens and include hidden carrier chances.
Exact Mendelian probabilities
Sex-linked orange genetics
Visual kitten previews
Known genotype mode
Choose both parents
Select the genotype or tested carrier status for each locus. Every result uses the exact selections below.
Exact prediction
Kitten outcomes
Choose both parents and calculate the expected coat outcomes.
Possible Female Kittens
Percentages among female kittens
Hidden inheritance
Carrier chances
These probabilities describe kittens that inherit one recessive allele while showing a different visible phenotype.
How the calculation works
From parent alleles to visible kitten coats
1
Cross each locus
The calculator creates parental gametes and combines them with a Punnett-square calculation at every selected locus.
2
Apply gene interactions
Sex-linked orange, dilution, agouti, tabby, colorpoint and KIT white effects are applied in phenotype order.
3
Merge matching coats
Different genotypes that produce the same visible coat are combined into one outcome with a total probability.
Modeled loci: Orange, Brown, Dilution, Agouti, Mackerel/Classic Tabby, Siamese/Burmese Colorpoint, Dominant White/White Spotting and recessive Long Hair.
Why sex matters
Orange is X-linked
Male kittens receive their X chromosome from the dam. Female kittens receive one X chromosome from each parent, so an orange sire passes his orange X chromosome to every daughter.
Reading the result
Probability applies to each kitten
A 25% outcome means each kitten has a one-in-four theoretical chance for that result. A litter does not need to match the percentages exactly.
Scientific references
Knowledge used by the calculator
The inheritance rules and terminology are based on veterinary genetics laboratory documentation and peer-reviewed feline genetics research.
- UC Davis Veterinary Genetics Laboratory · Feline Coat Color
- UC Davis VGL · Brown, Chocolate and Cinnamon
- UC Davis VGL · Colorpoint Restriction
- UC Davis VGL · Dominant White and White Spotting
- UC Davis VGL · Long Hair
- Current Biology · Molecular characterization of sex-linked orange
- Cat Fanciers’ Association · Coat and Color Descriptions
Genetics rules reviewed: July 31, 2026.