728.10 leas is about 550,000,000 times as tall as a Human hair, Strand of.
In other words, the height of a Human hair, Strand of is 0.00000000190 times that amount.
(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.
