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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]If PPs are correct about the growth curve, here is a calculator.

https://www.babycenter.com/child-height-predictor
[/quote]

No, PP, that's primarily based on mid-parental height, not primarily on the growth curve. [/quote]

No it doesn't, when I adjust the parents height the predicted height doesn't change.  It goes off the growth curve, I got the same results with both ways.   [/quote]

No. It factors in the growth curve, but it is working on parental heights. Why else would they ask you to enter the parental heights? They are not a part of the growth curve at all -- totally irrelevant to it. Mind you, I think it's probably more accurate to factor all these things in, but it's not a tool for people who just want growth curve numbers. They can just look at the chart.

From your link, for a 4 yr old boy at 40 lbs and about 41 inches (approximately 75th percentile for height and for weight):

- growth chart --> predicted 5'11.5" at 18 yrs old, regardless of parent heights
- your calculator
  * if mom is 5'2" and dad is 5'4",  predicted 5'9" for the child
  * if mom is 5'10" and dad is 6'2", predicted 6'1" for the child (4 inches difference from that with the short parents)
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