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How to Change Inch Sizes to Metric

Inches is a common unit of distance in the imperial system of measurements. The metric system's standard unit is the meter. Other metric units of distance include the millimeter, centimeter and kilometer. The metric prefixes each stand for a power of 10: "Milli-" stands for 0.001; "centi-" stands for 0.01; and "kilo-" stands for 1,000. Knowing the value of the metric prefix and the fact that each inch equals 2.54 cm allows you to convert any inch size to metric units.

Instructions

- 1
  Multiply the size in inches by 2.54 to convert to centimeters. For example, if you have 60 inches, multiply 60 by 2.54 to get 152.4 cm.
- 2
  Multiply the size in inches by 25.4 to convert to millimeters. For example, if you have 60 inches, multiply 60 by 25.4 to get 1,524 mm.
- 3
  Multiply the size in inches by 0.0254 to convert to meters. For example, if you have 60 inches, multiply 60 by 0.0254 to get 1.524 m.
- 4
  Multiply the size in inches by 0.0000254 to convert to kilometers. For example, if you have 60 inches, multiply 60 by 0.0000254 to get 0.001524 km.

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