Calculator tool
Height conversions are straightforward: 1 inch = 2.54 cm. The mid-parental height method estimates a child's adult height: boys = (father + mother + 5 inches) / 2; girls = (father + mother - 5 inches) / 2.
Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.
How accurate is the mid-parental height estimate?
It gives a rough estimate within ±2 inches (5 cm) of adult height for most children. Actual height depends on nutrition, health, and genetics.
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