Child Height Predictor
A child's likely adult height from both parents' heights, using the mid-parental height method.
A population-average estimate, not a prediction for any individual child — nutrition, health, and genetics beyond parental height all affect actual adult height. Not medical advice.
Predicted adult height
179 cm
Typical range
171–188 cm
±8.5cm rule of thumb
For informational and educational purposes only — not medical advice, and not a substitute for consulting a qualified professional about your specific situation. TrueMeasureKit is not liable for decisions made based on these results. See our Terms of Service.
Where the 13cm adjustment comes from
The mid-parental height method starts by averaging both parents' heights, then adjusts for the average adult height gap between men and women — roughly 13cm globally — added for boys and subtracted for girls. It's a widely used rule of thumb, not a precise genetic model: it captures the strong general correlation between parental and child height without accounting for growth-affecting factors like childhood nutrition or health conditions, which is why the result is best read as a reasonable estimate rather than a firm number.
Frequently asked questions
What's the mid-parental height method?
A widely used estimate that averages both parents' heights, then adds or subtracts about 2.5 inches (6.5 cm) depending on the child's sex — it's a rough genetic estimate, not a guarantee.
How accurate is this prediction?
Mid-parental height correlates with adult height but explains only part of the variation — nutrition, health, and individual growth patterns during childhood also play a significant role, so treat the result as a broad estimate, not a fixed outcome.