Inch
| Inch | |
|---|---|
| Unit system | Imperial / US customary |
| Unit of | Length |
| Symbol | in or ″ (double prime) |
| Conversions | |
| 1 in or ″ (double prime) in ... | ... is equal to ... |
| Metric | 0.0254 m |
The inch (symbol: in or ″) is a unit of length in the imperial and US customary systems of measurement. It is equal to 1/12 of a foot and 1/36 of a yard. The inch is further divided into smaller units. There are 12 lines in an inch, and each line is subdivided into 10 points.
History[edit | edit source]
The inch has been used as a unit of measurement since the early Middle Ages. The word "inch" is derived from the Latin word "uncia," which means "one-twelfth." Historically, the inch was defined by various standards, including the width of a man's thumb. In 1959, the inch was internationally defined to be exactly 25.4 millimeters.
Usage[edit | edit source]
The inch is commonly used in the United States, Canada, and the United Kingdom. It is used in various applications, including measuring the height of a person, the diameter of a pipe, and the size of a television or computer monitor screen.
Conversion[edit | edit source]
One inch is equal to:
- 1/12 of a foot
- 1/36 of a yard
- 25.4 millimeters
- 2.54 centimeters
Related Units[edit | edit source]
See also[edit | edit source]
References[edit | edit source]
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