Child Height Predictor

Estimate your child adult height from both parents heights with the mid parental formula.

Quick answer: Child Height Predictor: Estimate your child adult height from both parents heights with the mid parental formula. Everything runs in your browser, so nothing you enter is uploaded or stored.

How to use Child Height Predictor

  1. Enter your values in the fields.
  2. The results update instantly as you type.
  3. Note or copy the numbers you need.

Features

How it works

Boys: (mother + father + 5 inches) / 2. Girls: (mother + father - 5 inches) / 2.

Worked example

Parents of 64 and 70 inches give a boy about 69.5 inches (5 ft 9.5 in) and a girl about 64.5 inches.

Good to know

Nutrition, health and sleep affect growth. Talk to a pediatrician about concerns.

Frequently asked questions

How does it work?

The mid parental method averages the parents heights and adds 2.5 inches for a boy or subtracts 2.5 for a girl.

How accurate is it?

About two thirds of children end up within 4 inches of the estimate.

Is the Child Height Predictor free?

Yes. It is free, needs no signup and works on any device.

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