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About Eye Calculator

Eye Calculator is a free, educational eye color prediction tool that helps parents, expectant families, students, and anyone curious about genetics explore the probability of a child's eye color based on the eye colors of both parents and all four grandparents. Our goal is to make genetic inheritance concepts accessible, accurate, and easy to understand for a general audience.

Our Mission

Eye color genetics is a fascinating, real-world example of how inherited traits work. Yet most people have only a vague understanding of why children sometimes look surprisingly different from their parents. Eye Calculator was created to bridge that gap — to give families a useful, science-grounded tool that explains the probabilities behind a baby's eye color while making the underlying genetics transparent and approachable.

Our mission is threefold: to provide an accurate and easy-to-use eye color prediction tool free of charge, to publish clear and evidence-based explanations of eye color genetics for the general public, and to maintain the highest standards of transparency about what the tool can and cannot do. We never claim to guarantee outcomes. We provide probability estimates grounded in the best available genetic science.

We believe that everyone deserves access to clear, unbiased information about human biology — not just those who can afford genetic counseling or interpret academic research. Eye Calculator is our contribution to that goal.

Who We Are & Our Team

Khem Raj — Founder & Lead Engineer: Eye Calculator was founded by Khem Raj, a software engineer with a background in full-stack web development and a long-standing interest in making science accessible to general audiences. Khem designed and built the calculator's genetic model, the site's editorial framework, and the underlying code architecture from scratch, drawing on peer-reviewed research in human pigmentation genetics. He has several years of professional experience in software development and web systems engineering.

Eye Calculator is built and maintained by a small team of web developers and science communicators. The team combines backgrounds in biology, genetics communication, and software development. Our current tools include the Eye Color Calculator, Eye Color Rarity Calculator, Heterochromia Probability Calculator, Baby Eye Color Change Timeline, Eye Color Heritage Tracer, and Eye Color Dominance Visualizer.

The calculator's genetic model was developed with reference to peer-reviewed research on pigmentation genetics, including studies published in journals such as Human Genetics, Eye, and Biomedicines. The written content on the site is reviewed against primary sources including MedlinePlus, the Cleveland Clinic, Medical News Today, and Wikipedia's genetics pages. All external references are cited on the relevant pages.

We are not a medical organization and our team does not include licensed genetic counselors or physicians. The tool is intended for educational and entertainment use only. Users with clinical questions about pigmentation disorders or genetic conditions are encouraged to consult a qualified ophthalmologist or genetic counselor.

Editorial Integrity & Content Standards

All content published on Eye Calculator is written to the following standards:

  • Evidence-based: Claims about genetics are supported by references to peer-reviewed research or authoritative health organizations.
  • Accurate and current: We review and update content periodically to ensure it reflects the current scientific consensus.
  • Transparent about limitations: The calculator is a simplified probabilistic model. We clearly state what it can and cannot predict on every relevant page.
  • Plain language: Content is written for a general audience at approximately a Grade 7–8 reading level. Technical terms are defined when they first appear.
  • No medical advice: No content on this site constitutes medical, reproductive, or diagnostic advice. We direct readers to appropriate professional resources when applicable.

If you identify an error in our content, we encourage you to contact us with a reference to the source. We take correction requests seriously and will update the site promptly when errors are confirmed.

Transparency & Funding Disclosure

Eye Calculator is a free service supported by advertising. The site may display advertisements served through the Google AdSense program. These advertisements are provided by Google and are subject to Google's advertising policies. We do not control which advertisements appear, and the presence of an advertisement does not constitute an endorsement of the advertised product or service.

We do not accept sponsored content, paid product reviews, or affiliate commissions. Our editorial content is completely independent of our advertising relationships. Advertisements are clearly distinguished from editorial content on every page.

We do not sell user data. All eye color inputs entered into the calculator are processed entirely in the user's browser and are never transmitted to our servers. For full details about what data we collect and how we use it, please read our Privacy Policy.