The diameter of a human hair does not have a standard value since different people have different hair structures. Your genetic makeup can cause the width of your hair to differ from that of other people. Hair color is also a big factor. Black hair is thicker than is red hair. The weather can also affect the diameter of a hair strand. As the weather gets warmer, the diameter of body hair increases. Age is another factor. Babies and young children have finer hair than adults. As a person grows up, their hair becomes thicker and stronger. Another factor is that, the closer to the root of the hair, the thicker a strand of hair would be.
In my research, I have found the diameter of human hair to range from 17 to 181 µm (millionths of a meter)
It can vary tremendously depending on race, and continent (Africans' average hair thickness is higher than Europeans', for example). It also depends if you talk about body hair or head hair. Hair from a human head is normally between .04 and .25 millimeters, averaging normally .1. Body hair depends on gender and even within individuals of the same gender and race it can be very different from an individual to another.
The Thickest Hair in the human body belongs to a man's moustache. Usually hair is not completely tubular. Moustache hair is like a strap. The thinner dimension is as thick as 0.2MM and the thicker dimension is as thick as 0.3 MM. These are usually the thickest hairs measured. Sometimes very short abnormally thick hair is where the root is damaged and needs to be removed.
0.04 and 0.025 mm
Put it under a microscope
The width of a human hair is 0.0018 cm.
Millimeter
2
micrometer
About the thickness of a hair of your head.
The first example: hair diameter
There are an average of 100,000 hairs on the human head.
The average amount is hair on human heads is 100,000. Blondes have more hair than other hair colors at 140,000.
Human hair varies in size greatly. A child's head hair can be as fine as 0.05mm. An adult's head hair can be as course as 0.25mm. Adult eye- brow hair can be as thick as 0.3mm. Hair is circular in shape, not flat like grass. Things which are circular or round in shape, do not have 'thickness', they have 'diameter'.The sizes above express the Diameter of Hair. In the Imperial system of measure, human hair varies between 0.002 inch & 0.010 inch Diameter.
very thin
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).
measured in metric: between 17 micron to 180 micron (1000 micron in 1 mm) (1 millimeter = 0.0393700787 inches
Your hair grows .75 inches in a month
0.015 inch = approx 0.4 mm which is about four times the thickness of human hair.
about 6 inches per year <3
About the thickness of a hair of your head.
The average human hair length is about 0.5 inches (1.25 cm) per month. However, individual hair growth rates can vary based on genetics, age, and health factors.
On average, human hair grows approximately 1/2 inch per month leading to 6 inches per year.
Million
Human scalp hair normally grows at about 0.5 inches a month.
Human hair, on average, will grow 1.25 inches in 10 weeks. On average a persons hair will grow half of an inch a month, however a persons diet, genetics and health can play a role in the growth rate of hair.