To convert length x width x height dimensions from millimeters to inches we should multiply each amount by the conversion factor. One millimeter equals 0.0393701 inches, in order to convert 48 x 118 x 21 millimeters to inches we have to multiply each amount of millimeters by 0.0393701 to obtain the length, width and height in inches. In this case to convert 48 x 118 x 21 millimeters into inches we should multiply the length which is 48 by 0.0393701, the width which is 118 by 0.0393701 and the height which is 21 by 0.0393701. The result is the following:
48 x 118 x 21 millimeters = 1.89 x 4.65 x 0.83 inches
The millimeter (symbol: mm) is a unit of length in the metric system, equal to 1/1000 meter (or 1E-3 meter), which is also an engineering standard unit. 1 inch = 25.4 mm.
An inch (symbol: in) is a unit of length. It is defined as 1⁄12 of a foot, also is 1⁄36 of a yard. Though traditional standards for the exact length of an inch have varied, it is equal to exactly 25.4 mm. The inch is a popularly used customary unit of length in the United States, Canada, and the United Kingdom.
To calculate a millimeter value to the corresponding value in inches, just multiply the quantity in millimeters by 0.0393701 (the conversion factor).
inches = millimeters * 0.0393701
The factor 0.0393701 is the result from the division 1 / 25.4 (inch definition). Therefore, another way would be:
inches = millimeters / 25.4
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