What is the Punnett Square Calculator?
Type the genotype of each parent, like Aa and Aa, or AaBb and aaBb. The tool builds the full Punnett square, then lists every genotype with its ratio and percentage, and the phenotype ratio (dominant vs recessive traits).
How to use the Punnett Square Calculator
- Enter parent 1 genotype (pairs of letters).
- Enter parent 2 genotype with the same genes.
- Read the square and ratios.
What does capital letter mean?
A capital letter is the dominant allele, a small letter is recessive.
This Punnett Square Calculator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.
Last updated: · By NodifyTech