Correction for the width of a Strand of Hair
Thanks for your input! Let us know more about what's wrong in the form below.
How long is 100,000 kilometers?
It's about 1,000,000,000,000 times as wide as a Strand of Hair
The width of a Strand of Hair is about 0.0000000990 kilometers.
(average)
A strand of human hair averages 99 µm (micrometers), with blond hair being the finest and black hair the thickest. On a healthy scalp, each strand of hair will last up to 6 years.