Birth weight and birth length were compared with several growth measures, including body height and weight, linear measures of limbs, body diameters, and head circumference, in 726 Melbourne schoolchildren of both sexes age 5-18 years. The analysis of relationships between three categories of birth length, weight, and growth measures were based on z-scores and performed by using analysis of variance and partial correlation. The data showed that birth length was correlated with body height and birth weight was correlated with head circumference; the relationships were weak and were less clear around the age corresponding to the peak height velocity in either sex. Further studies are needed to determine the common underlying mechanisms responsible for these associations. Am. J. Hum. Biol. 11:772-778, 1999. Copyright 1999 Wiley-Liss, Inc.