Expert answer: The BabyCenter Editorial Team

Yes, long babies do tend to grow up to be tall adults.

The height of a baby's parents is another clue to whether or not he or she will be tall. Babies do inherit their parents' body types – tall, short, heavy, or slender.

Based on this genetic factor, you can estimate your child's adult height by adding Mom's and Dad's heights (in inches), dividing that number by two, and adding 2.5 inches for boys or subtracting 2.5 inches for girls.

Another rule of thumb is that a person's height when full grown is double his or her height at age 3.

Of course, we've all seen kids who tower over both parents, who end up much shorter than expected, or who are shorter than average throughout childhood and then pull an Alice-in-Wonderland size change – so none of this is guaranteed.

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