<P> One study in the United States estimated the average human head circumference to be 55 centimetres ( 21 ⁄ in ) in females and 57 centimetres ( 22 ⁄ in ) in males . A British study by Newcastle University showed an average size of 55.2 cm for females and 57.2 cm for males with average size varying proportionally with height </P>
<P> One study in the United States estimated the average human head circumference to be 55 centimetres ( 21 ⁄ in ) in females and 57 centimetres ( 22 ⁄ in ) in males . A British study by Newcastle University showed an average size of 55.2 cm for females and 57.2 cm for males with average size varying proportionally with height </P>
what is the average size of a head
what is the average size of a head
55 centimetres ( 21 ⁄ in ) in females 57 centimetres ( 22 ⁄ in ) in males
55 centimetres ( 21 ⁄ in ) in females 57 centimetres ( 22 ⁄ in ) in males