There's no proven way to predict a child's adult height. However, several formulas can provide a reasonable guess for child growth. Here's a popular example: Add the mother's height and the father's height in either inches or centimeters. Add 5 inches (13 centimeters) for boys or subtract 5 inches (13 centimeters) for girls. Divide by two.
Not guaranteed. And if it's right you're pretty much as tall as your going to get!