Estimating Your Child’s Adult Height

Clint built Roy and his little cousin, Arlo, growth charts for their birthdays this year. He made them out of thin, well oiled cross-sections of tree (cedar?), with wood-burned numbers. They can be taken on and off the wall, so moving to different rooms or homes isn’t a problem. Roy will share his with Vera eventually. We’ll give each kid a side.

Thought I’d show it off along with the Mayo Clinic’s information on predicting a child’s adult height.

Two formulas:

  • Add the mother’s height and the father’s height.
  • Add 5 inches for boys, or subtract 5 inches for girls.
  • Divide by two.

“Most children will reach an adult height within 4 inches of this estimation,” the site says.

Or: Double his or her height at age 2.

The first formula has Roy at 5’9″. The second has him at 6’1.”

Hard to imagine either. Then again, it’s hard to believe he was the one we were bathing on the sink just two years ago.

Working on Birth Story: Part Two. Promise. It’s really hard to organize my thoughts in this newborn haze.

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  1. by Stasia

    On April 5, 2012 at 12:01 am

    30 years ago we doubled our sons height right after his second birthday. He was 39 1/2 inches tall. This put him at a future height of 6’7″. His senior year of high school he was 6’6, as a sophmore in college he was 6’7 1/2. With shoes he was 6’8. I did the same with his brothers, I was suprised that one would 6’0, and he is, and his half brother would be 6’1, he is 18 and 6’1. Same method for all three.

  2. by Jenn

    On March 11, 2013 at 6:43 pm

    I don’t think the mayo clinic height estimate is a very good predictor. My husband and I are quite tall, and according to this formula, my daughter will be 4.5″ shorter than me. She’s only 6 weeks old, but I really doubt she’ll be that much shorter than me. Maybe the 2 year old estimate is more accurate!