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Length Conversion Factors

Length: 1 inch = 25.4 millimeters

1 foot = 0.3048 meters

1 mile = 1.609 kilometers

Linear Units - Equivalents

Linear Unit Micron Mil Millimeter Centimeter Inch Foot Meter
Micron * 0.039 0.001 1.0X10-4 3.94X10-5
Mil 25.4 * 2.54X10-2 2.54X10-3 0.001 8.33X10-5
Millimeter 1000 39.4 * 0.10 0.0394 3.28X10-3 0.001
Centimeter 10,000 394 10 * 0.394 0.033 0.01
Inch 2.54X104 1,000 25.4 2.54 * 0.083 0.0254
Foot 3.05X105 1.2X104 30.5 30.5 12 * 0.305
Meter 1.0X106 3.94X104 100 100 39.4 3.28 *
Title: Length Conversion Factors
Description: Conversion Factors for microns, mils, millimeters, centimeters, inches, feet, and meters.
Published: 10/5/2009
Last Edited: 1/5/2023

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