Our Mission
PunnettSquares.com was built on a single belief: genetics education should be free, accurate, and accessible to everyone. Whether you are a high school student working through your first monohybrid cross, a university lecturer preparing teaching materials, or a researcher needing a quick Hardy-Weinberg calculation, our tools are designed to help.
We cover the full breadth of classical and molecular genetics — from Mendelian Punnett Square crosses all the way to oligonucleotide analysis and serial dilution planning. Every calculator is built with scientific accuracy, runs entirely in your browser (no data is sent to any server), and is freely available without registration.
What We Offer
Genetics Calculators
Punnett squares, incomplete dominance, codominance, blood type, eye colour, hair colour, and more.
Population Genetics
Hardy-Weinberg equilibrium, allele frequency calculations, and chi-square tests.
Molecular Biology Tools
Oligo analysis, Tm calculation, GC content, reverse complement, and extinction coefficients.
Dilution Calculators
C1V1 = C2V2 dilutions, serial dilutions, alcohol dilutions, and dilution factor tools.
Educational Blog
In-depth articles on genetics concepts, Mendelian inheritance, and molecular biology techniques.
Scientific Accuracy
All calculators on PunnettSquares.com are built on peer-reviewed scientific formulas and established genetics principles. Our Punnett Square engine uses correct combinatorial gamete generation for all cross types. Our oligonucleotide tools apply the standard nearest-neighbour thermodynamics and Beer-Lambert law equations used in molecular biology laboratories worldwide.
For further reading on the science behind our tools, we recommend the NCBI Genetics Primer, Wikipedia: Mendelian Inheritance, and Khan Academy: Heredity.
Privacy & Data
All calculations on PunnettSquares.com run entirely client-side in your browser. No genetic data, sequences, or inputs are transmitted to any server. We do not require registration and do not display advertising. Your calculations remain private.
Disclaimer
Educational use only.
Results from PunnettSquares.com are provided for educational and informational purposes only. They should not be used for clinical genetic counselling, medical diagnosis, or any clinical application. Always consult a qualified clinical geneticist or healthcare professional for clinical genetic questions.
Contact Us
Have a suggestion, found an error, or want to request a new calculator? Get in touch with us. We welcome feedback from educators and students to help us improve.