Abstract
Measurements of weight and height of 21.638 Saudi boys and girls ages six to 16 years from the Eastern Province were taken. It was observed that the accurate age of children could only be made out in Hegira years, as age is recorded by parents and at schools by the Hegira calendar. Age is a crucial factor in studies such as this and for valid comparison with any international reference standard, the latter must be adapted to the Hegira calendar year. Curves for weight and height percentiles for age have been constructed and compared with the Hegira adaptation of the NCHS growth standard.