Height Adults Calculator

Measured, not reported, wherever possible. Centimetres, or inches in US units.
Centimetres, or inches in US units.
Required by the doubling rule and by Khamis-Roche; optional for mid-parental.
Required by Khamis-Roche only.
Used to check that the chosen method is being applied inside its published age range.
Predicted adult height
179.0 cm
Adult Height Predictor
Predicted adult height
70.5 in
Predicted adult height
5 ft 10.5 in
Low end of the likely range
170.5 cm
High end of the likely range
187.5 cm
Mid-parental (target) height
179.0 cm
Method
Tanner mid-parental (target) height
Worked out from Tanner JM, Goldstein H, Whitehouse RH. Standards for children's height at ages 2-9 years allowing for height of parents. Arch Dis Child 1970;45:755-762 and 3 other sources.
A predicted adult height is a statistical estimate with a wide error band, not a measurement. Tanner's target range spans about 17 cm, and the Khamis-Roche standard error is roughly 5.6 cm for boys and 4.3 cm for girls. Short stature, a falling height percentile or delayed puberty should be assessed by a clinician, not by a calculator.

How this is worked out

2 steps
  1. Mid-parental height (boy) = (father + mother + 13 cm) / 2 = (180 + 165 + 13) / 2 = 179 cm.
  2. Target range = 179 +/- 8.5 cm = 170.5 to 187.5 cm.

Results are general information, not financial, tax, legal, medical or engineering advice.