Finger (unit)
Encyclopedia
A finger is usually seven eighths of an inch
Inch
An inch is the name of a unit of length in a number of different systems, including Imperial units, and United States customary units. There are 36 inches in a yard and 12 inches in a foot...

 or 2.2225 cm
1 E-2 m
Image:Length one to ten scale.svg|110px|right|Click on the top for smaller lengths and on the bottom for larger lengthspoly 0 0 20 20 0 20 Distances shorter than 1 centimetrepoly 0 200 200 200 220 220 0 220 Distances 10 centimetres or longer...

 (for the international inch). The width of an adult human male finger tip is indeed about two centimetres. The inch
Inch
An inch is the name of a unit of length in a number of different systems, including Imperial units, and United States customary units. There are 36 inches in a yard and 12 inches in a foot...

, on the other hand, originates in the breadth of a thumb. In English this unit has mostly fallen out of use.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK