Reference range for head circumference on the Tanner charts do not go beyond age 16. In this study the head circumference and heights of 354 adults in two British centres were measured. The centile charts constructed from these measurements show that adult head circumference is related to height Cited by: 163.
The normal, or average head circumference of a person varies by age and by gender. For an adult male, average head circumference is 22 inches. For an adult woman, it is 20 inches. An average baby head circumference is 12 inches for premature babies and 14 inches for an average-sized baby.
The average head circumference of an adult male and female is 22.44 and 20.87 inches, respectively. However, averages vary widely depending on the age and ethnicity of the individual. Forensic anthropologists at the University of Tennessee, Knoxville have recently determined that American head size is on the rise.