Ralston and Myatt reported a number of equations for estimated the weight of a small child based on body measurements. One uses body height or length. The authors are from the Uniformed Services University of the Health Sciences in Bethesda and Brixton Healy in Wales.

Patient selection: child 6 to 59 months in a limited-resource setting.



(1 height or length in cm


estimated weight in kilograms =

= 11.2967 - (X / 0.8615)


X =

= 11.2967 - ((0.2284 * (height)) - 8.2993)


If this is rearranged and consolidated:


estimated weight in kilograms =

= (0.2651 * (height)) - 11.4497

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