mine is 620mm is that too big?? i think the average circumference is about 570 for men mine is 620mm is that too big?? i think the average circumference is about 570 for men
46
31 inches
Because it is difficult to wrap a metre ruler around someone's head.
A circumference is 4
mark the tyre sidewall with chalk at bdc mark the road at the same point roll the tyre ten times mark the road measure and divide by ten gives a good average for the circumference
what is the average head circumference of a 5 year old boy
The average circumference of the human head in men is 55.9 cm. The average circumference of a woman's head is 54.47cm. There is rarely more than 2cm difference either way.
46
75 cms
There is no specific size
30 inches
22
The average head circumference at birth is about 13.5 in or 34.5 cm.
55 cm
16 inches
3 billion miles
to be honest there is no average to this.It all really depends on the persons brain size and capacity.