56 Free Genetics Calculators

Calculate brown, blue, green, hazel and grey probabilities using OCA2 and HERC2 gene models.

Predict monolid, hooded, almond, or round eye shapes from parental features and PAX gene variants.

Estimate X-linked red-green color blindness probability based on family carrier history and OPN genes.

Calculate the probability of differently colored eyes using melanin distribution and development genetics.

Predict black, brown, blonde, or red hair using polygenic pigment models and MC1R gene analysis.

Find out if your baby will have straight, wavy, curly, or coily hair using TCHH gene inheritance models.

Estimate hereditary androgenetic alopecia risk based on parental and grandparental hair-loss patterns.

Predict beard colour based on scalp hair genetics and MC1R variant inheritance for male children.

Calculate clockwise vs counter-clockwise hair whorl probability from genetic and developmental models.

Explore likely skin tone range using the Fitzpatrick scale , especially useful for mixed-ethnicity families.

Determine cool, warm, or neutral undertone probability based on parental pigmentation genetics.

Discover how the MC1R gene drives freckle formation and the probability of your child having them.

Understand the genetic basis of congenital moles and birthmarks and their inheritance probability.

Explore how mixed heritage shapes physical appearance, from skin tone and eye colour to hair texture.

Predict oval, round, square, heart, or diamond face shape from parental facial bone structure genetics.

Calculate probable nose bridge height, width, and tip shape from polygenic facial feature inheritance.

Predict lip fullness, Cupid's bow shape, and overall proportions based on parental genetics.

Find out the likelihood of facial dimples using zygomaticus muscle variation and dominant inheritance analysis.

Calculate cleft chin probability based on dominant genetic factors passed from both parents.

Predict attached or free earlobes using classical Mendelian dominant and recessive inheritance grids.

Estimate widow's peak hairline probability using dominant inheritance pattern analysis.

Predict thick, thin, arched, or straight eyebrows from parental feature genetics.

Understand inherited facial symmetry tendencies based on parental developmental gene patterns.

Describe your facial features and find out which celebrity facial type you most closely resemble.

See how your facial features are likely to change across different life stages based on age, genetics, and lifestyle.

Answer a few questions about your face shape and key facial features to get personalised glasses frame recommendations.

Estimate adult height using the validated mid-parental formula. Supports cm and feet/inches input.

Track baby height percentiles and compare against WHO/CDC growth chart standards by age.

Estimate likely birth weight range based on parental size, gestation, and hereditary growth patterns.

Predict baby head circumference range using parental measurements and polygenic brain development models.

Predict left-handed vs right-handed probability from parental handedness and genetic marker analysis.

Calculate tongue rolling ability probability using dominant Mendelian inheritance analysis.

Predict hitchhiker's thumb hyperextension probability using recessive inheritance pattern models.

Estimate hypermobility probability from inherited connective tissue and collagen gene variants.

Calculate second-toe-longer-than-big-toe probability from polygenic foot structure inheritance.

Calculate ABO and Rh blood type probabilities for your baby from both parents' known blood types.

Predict lactase persistence probability based on LCT gene variants from parental ancestry patterns.

Calculate PTC bitter taste sensitivity probability based on TAS2R38 gene variant inheritance.

Understand and calculate dominant vs recessive trait inheritance. Enter parent genotypes and see Punnett square probabilities instantly.

Calculate how likely your baby is to inherit rare genetic traits including red hair, grey eyes, heterochromia, and left-handedness.

Build your own genetic inheritance simulation. Select the inheritance model, enter parent genotypes, and see probabilities.

Generate a combined parental facial feature estimate to visualise possible baby appearance.

Understand when and how eye colour changes from birth through the first 3 years of life.

Track how melanin production develops in babies and how skin tone evolves post-birth.

Explore traditional and scientific gender prediction methods including the Chinese calendar chart.

Calculate your estimated due date using Naegele's rule and last menstrual period method.

Compare inherited trait probabilities between two siblings based on the same parents. See why siblings from the same parents can look so different.

See how grandparent traits flow to grandchildren. Enter all four grandparents' traits and calculate how likely your baby is to inherit grandparental features.

Map your family's trait inheritance across three generations. Enter grandparents, parents, and calculate what traits your child is most likely to inherit.

Will your baby look more like mum or dad? This calculator uses genetic dominance patterns across five key visible traits to estimate resemblance.

Enter your baby's age to get an evidence-based estimate of how much sleep they need, night wake frequency, and patterns.

Enter your baby's current age and known factors to get an evidence-based estimate of when they'll reach key developmental milestones.

Enter your baby's age and current weight to calculate how much breast milk or formula they need per feed and per day.

Enter your cycle details to visualise your fertile window and estimate conception probability across the cycle.

Find the perfect baby name by selecting style preferences, name origin, and meaning themes. Browse curated suggestions.

Discover baby names that honour your family's cultural heritage. Enter both parents' backgrounds.