Machinery's Handbook, 31st Edition
2836
US and Metric System Conversion Tables US SYSTEM AND METRIC SYSTEM CONVERSIONS Units of Length Table 1. Linear Measure Conversion Factors Metric US Customary
1 kilometer (km) = 1000 meters
1 mile (mi) =
0.868976 nautical mile 1760 yards 5280 feet 63,360 inches 1.609344 kilometers 1609.344 meters 160,934.4 centimeters 1,609,344 millimeters
100,000 centimeters 1,000,000 millimeters 0.539956 nautical mile 0.621371 mile 1093.61 yards 3280.83 feet 39,370.08 inches
1 meter (m) =
1 yard (yd) = 3 feet 36 inches
10 decimeters 100 centimeters 1000 millimeters 1.09361 yards 3.28084 feet 39.37008 inches 1 decimeter (dm) = 10 centimeters 1 centimeter (cm) = 0.01 meter 10 millimeters
0.9144 meter 91.44 centimeter 914.4 millimeter 1 foot (international) (ft) = 12 inches = 1 ∕ 3 yard 0.3048 meter
30.48 centimeter 304.8 millimeters
1 survey foot =
0.0328 foot 0.3937 inch 1 millimeter (mm) = 0.001 meter
1.000002 international feet 12 ∕ 39.37 = 0.3048006096012 meter
1 inch (in) =
1000 mils 1,000,000 micro-inches 2.54 centimeters 25.4 millimeters 25,400 microns
0.1 centimeter 1000 microns 0.03937 inch 1 micrometer or micron ( μ m) =
0.000001 meter = one millionth meter 0.0001 centimeter 0.001 millimeter 0.00003937 inch 39.37 micro-inches
1 mil =
0.001 inch 1000 micro-inches 0.0254 millimeters
1 micro-inch ( μ in) =
0.000001 inch = one millionth inch 0.0254 micrometer (micron)
Note : Figures in Bold indicate exact conversion values
Surveyors Measure
Nautical Measure
1 mile = 8 furlongs = 80 chains 1 furlong = 10 chains = 220 yards 1 chain =
1 league = 3 nautical miles 1 nautical mile = 1.1508 statute miles 6076.11549 feet 1.8516 kilometers 1 fathom = 2 yards = 6 feet 1 knot = nautical unit of speed = 1 nautical mile per hour 1.1508 statute miles per hour 1.8516 kilometers per hour
4 rods = 22 yards = 66 feet = 100 links
1 rod =
5.5 yards = 16.5 feet = 25 links 5.0292 meters
1 link = 7.92 inches 1 span = 9 inches 1 hand = 4 inches
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