The average height of a human head in relation to the body’s total height is typically around 1/7th or approximately 14.3% of the person’s overall height. This means that if you were to divide a person’s height into seven equal parts, one of those parts would represent the height of the head from the top of the skull to the bottom of the chin.

It’s important to note that while this is an approximate average, individual variations in head height can occur due to genetic, ethnic, and other factors. Additionally, factors such as posture and spinal curvature can influence the relative height of the head in relation to the rest of the body.