Inch

An inch is the measure of length. A man's thumb is about an inch wide.

1 inch = 25.4 millimeters
12 inches = 1 foot = 304.8 millimeters
36 inches = 1 yard = 914.4 millimeters
1 meter = about 39.37 inches

The aabreviation for "inch" is "in" or " (double quote).

In the United States, people use inches more than ay use millimeters or centimeters. Other U.S. customary units of measurement are also in common use.

In the United Kingdom, road signs for speed limits are in miles per hour. In the rest of the world, metric units are almost always used. The inch is not used when referring to science.

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