Family & growth tools
Baby Genetic Predictor
Combine both parents' traits to estimate your child's adult height, eye color and hair color using science-inspired probability models.
Height predictor
Estimate your child's adult height using the mid-parental height formula and a normal distribution to show a likely range.
Mother's height
Father's height
Predicted adult height
177 cm • 5′10″
Likely range (≈95% of children): 167–187 cm (5′6″ – 6′2″)
Eye color predictor
A polygenic-inspired probability model, based on common charts used by genetic counselors, to estimate eye color outcomes.
Parent eye colors
Most likely: Brown (50%)
Values are approximate and based on generalized population data.
Probability by eye color
Hair color predictor
Approximate hair color probabilities including dark, light, blonde and red phenotypes, assuming simplified inheritance of key genes such as MC1R.
Parent hair types
Most likely hair color: Light brown (45%)
Real-world genetics involve many genes; these values are illustrative, not diagnostic.
Probability by hair color
How this baby genetic predictor works
This tool combines classic mid-parental height calculations, polygenic-style eye color charts and simplified hair color inheritance models to give you visually clear, probabilistic insights into likely traits. It is for educational and illustrative purposes only and is not a medical or genetic test.
- Height: uses a normal distribution with a ±4" range around the mid-parental prediction.
- Eye color: based on aggregated counselor-style probability grids for brown, hazel, green, blue and gray eyes.
- Hair color: models dark, light, blonde and red outcomes using simplified dominance and recessive patterns.