Child growth calculators
Child growth calculators — 2 tools, each showing the formula it uses, the source that published it, and the date that source was last checked.
Child height predictor
A child height predictor applies Tanner's mid-parental method: add 13 centimetres to the mother's height for a boy, or subtract it from the father's for a girl, then average the two. The answer comes with Tanner's own band of plus or minus 8.5 centimetres, which spans the 3rd to 97th centile.
Growth percentile calculator
A growth percentile calculator turns a child's height or weight into a centile using the LMS method Cole published in 1990, with the reference tables the WHO and CDC publish by age and sex. Enter an age, a sex and a measurement to see where it falls, and what a centile does not mean.
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