1. Parent Genetics
Enter biological mother & father's heights.
Curating the best options...
Gathering insights tailored just for you
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Curating the best options...
Gathering insights tailored just for you
Estimate your child's future height using parental genetics.
Enter biological mother & father's heights.
Formulas differ for boys vs. girls.
See the predicted adult height range.
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Predicting height isn't crystal science, but pediatricians have solid formulas that work. Genetics drive roughly 80% of your child's final height, which is why the parents' heights matter so much in any prediction.
We use the Mid-Parental Height Method—the same approach pediatricians use in clinic. It's simple, evidence-based, and gets you in the ballpark of where your child likely ends up.
Average both parents' heights, then adjust by 2.5 inches depending on gender. Simple, but effective—it captures the genetic baseline.
Slightly more precise for ages 4-17, this includes current weight and height to spot early or late growers.
*We use the genetic method above, which works across all ages.
Boys and girls hit their growth spurts at different times. Knowing the pattern helps you understand what's normal for your child.
Boys start later but keep going longer. The biggest growth jumps happen between 13 and 15, and most reach full height by 17 or 18.
Girls start earlier, usually around 10-11. Most finish growing by 14-15, roughly 2 years after their first period starts.
You can't rewrite genetics, but you can help your child hit the top of their range. Poor nutrition or chronic illness genuinely stunts growth.
Growth hormone peaks during deep sleep. Kids 6-13 need 9-11 hours; teens need 8-10.
Protein builds tissue, calcium and vitamin D strengthen bones. A balanced diet prevents growth setbacks.
Running, jumping, sports—weight-bearing exercise builds strong bones and supports growth.
Disclaimer: This tool provides an estimate for informational purposes only. For concerns about growth patterns (too fast or too slow), please consult a pediatric endocrinologist.
Explore more tools and resources to support you at every step.