how long is the average head
A human head will typically range from 54 to 57 inches in circumference. The length is on average 21 to 22 inches and the width is 17 to 18 inches.nswer by dwammer (710). The average size of the human head is 22 inches long and about 18 inches wide. The average circumferance is 55 inches around the head. add a comment.