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Baby Eye Color Predictor

Punnett odds for your baby's eye colour from both parents — and the grandparents, which reveal hidden recessives.

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Open Baby Eye Color Predictor and you get an answer straight away, with no account to create. Its place is under Games & puzzles; Baby Name Generator and Chinese Gender Predictor answer the questions closest to this one.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What does Baby Eye Color Predictor do?

Punnett odds for your baby's eye colour from both parents — and the grandparents, which reveal hidden recessives.

When would I actually use this?

The lighter half of preparing for a birth: narrowing a shortlist of names by origin, style, first letter and meaning, and working out the odds on eye colour from both parents — and from the grandparents, who are what reveal a recessive nobody can see.

What is the most common mistake?

Reading the eye-colour odds as a prediction. It is a Punnett square on the classical simplification, and real eye colour is polygenic — several genes contribute, hazel and green sit on a spectrum rather than in boxes, and an infant's eyes often darken through the first year. The output is a probability over a family, never a forecast for a child.

How is Baby Eye Color Predictor different from Baby Name Generator?

They sit next to each other but answer different questions. Baby Name Generator: filter a curated name set by gender, origin, style and letter, with meanings and a shortlist. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

Chinese Gender Predictor is the closest one after this: Use the traditional Chinese gender chart to guess boy or girl from the mother's lunar age and lunar conception month — either entered manually or derived from dates. Just for fun, not scientific.

What else is worth having open alongside it?

Paint Color Mixing Calculator and Puppy Weight Predictor — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

The name set is curated per language, with each entry's origin and meaning, rather than one English list translated six times — a name's popularity and its feel do not survive translation. The eye-colour odds are Mendelian inheritance applied to the two-gene model taught in schools, used here because it is the model the question is usually asked in, and knowingly simpler than the biology.

Further reading

All guides →
ExplainerTwo Brown-Eyed Parents, and the Model That Says 2.7 % BlueThe classic two-gene predictor is arithmetic, not a draw — and its one confident answer, blue × blue giving 100 % blue, is exactly where real genetics disagrees with it.ExplainerThe Chinese Gender Chart Says Boy in 57 % of Its Cells336 cells, 192 of them boy and 144 girl. The chart is not even a fair coin, and the real ratio at birth is about 51 % boys — which is the whole measurement this article has to offer.ExplainerA Jar Is Sold by Volume and Wax Is Bought by WeightThe trade rule of 0.8 oz of wax per fluid ounce of jar is an effective density of 0.767 g/mL — calibrated for soy at an 85 per cent fill. It is right to within 0.2 per cent for soy and under-reads beeswax by six.How-toHay by Body Weight: Flakes, Bales and a Whole WinterA 500 kg horse at maintenance eats 10 kg of hay a day — four and a third flakes, fifteen bales a month, ninety bales across a hundred-and-eighty-day winter. The activity percentage moves that by nearly half.ExplainerPet Insurance: the Answer Flips on One AssumptionOver fourteen years the same French dog costs 4,387 more insured if it stays healthy and 15,124 less if it develops a chronic condition. Every other input is arithmetic; the claim curve is the whole decision.How-toThe 80/10/5/5 Raw Ration, Worked From Body WeightA 25 kg dog at maintenance eats 625 g a day: 500 g muscle meat, 63 g edible bone, 31 g liver and 31 g other organ. The percentage you pick is worth more than every other input combined — growth is exactly double maintenance.