Calculate My Future Height

Doubling Method

Enter your child's height at age 2 (boys) or 18 months (girls) and choose their sex to estimate their adult height by doubling it【175430727538698†L320-L325】.

Mid‑Parental Method

Provide the parents’ heights and select the child's sex to estimate their adult height using the mid‑parental height formula【280403388320951†L92-L96】.

These methods provide rough estimates. The doubling method multiplies a boy’s height at age 2 or a girl’s height at 18 months by two【175430727538698†L320-L325】. The mid‑parental formula averages the parents’ heights and adds 13 cm for boys or subtracts 13 cm for girls【280403388320951†L92-L96】. Genetics explains much, but not all, of adult height, and predictions can vary【749850648130794†L60-L64】【749850648130794†L82-L87】; expect a margin of error【175430727538698†L336-L339】.

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