Human scalp hair normally grows at about 0.5 inches a month.
A normal human hair is approximately 0.003 inch to 0.005 inch in diameter.
the width of a human hair
One millimeter is MUCH wider than a human hair. About 20 human hairs equals 1 millimeter.
The human heart is about 12 cm (5 inches) long, 9 cm (3. 5 inches) wide, and 6 cm (2. 5 inches) from front to back. It is approximately the size of a human fist.
Your hair grows .75 inches in a month
It's different for everyone.
Around a year
On average, human hair grows approximately 1/2 inch per month leading to 6 inches per year.
the diameter of human hair varies from about 40 microns to 120 microns. a micron or micrometer is a millionth of a meter. Copy paper thickness is about 100 microns (or 0.1 millimeter).
about 6 inches per year <3
Human hair typically grows at a rate of 1/2 inch per month. For hair to grow five inches should take about ten months.