Length - Equivalent Conversion Calculators Menu

The following are links to length or distance conversion calculators and the conversion constants.

Unit of Measure
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Angstrom Conversions Angstrom is a unit of length equal to one hundred-millionth (10-8) of a centimeter, used especially to specify radiation wavelengths.
Astronomical units Conversions Mean (average) distance between the earth and the sun.
Cable Conversions Cable is a unit of length equal to 720 feet (220 meters) in the United States and 608 feet (185 meters) in England
Centimeter Conversions Or centimeter, The hundredth part of a meter; a measure of length equal to rather more than thirty-nine hundredths (0.3937) of an inch
Cubits (England) Conversions An ancient unit of linear measure, originally equal to the length of the forearm from the tip of the middle finger to the elbow, or about 17 to 22 inches (43 to 56 centimeters).
Fathom Conversions Equal to 6 feet (1.83 meters), used principally in the measurement and specification of marine depths.
Feet Conversions U.S. Customary and British Imperial systems equal to 12 inches (0.3048 meter).
Furlong Conversions The eighth part of a mile; forty rods; two hundred and twenty yards.
Hand Conversions Unit of length equal to 4 inches (10.2 centimeters), normally used to specify the height of a horse.
Inches Conversions U.S. Customary and British Imperial systems, equal to 1/12 of a foot (2.54 centimeters).
Kilometers Conversions Or Kilometer, metric unit of length equal to 1,000 meters (0.62 mile).
Light year Conversions The distance that light travels in a vacuum in one year, approximately 9.46 trillion (9.46 1012) kilometers or 5.88 trillion (5.88 1012) miles.
Meters Conversions Or Meter, 
Microns Conversions International standard unit of length, approximately equivalent to 39.37 inches. It was redefined in 1983 as the distance traveled by light in a vacuum in 1/299,792,458 of a second.
Miles (Nautical) Conversions A unit of length used in sea and air navigation, based on the length of one minute of arc of a great circle, especially an international and U.S. unit equal to 1,852 meters (about 6,076 feet).
Miles (Statute) Conversions Equal to 5,280 feet or 1,760 yards (1,609 meters), used in the United States and other English-speaking countries.
Millimeters Conversions Or Millimeter, equal to one thousandth (10-3) of a meter, or 0.0394 inch
Points (printing) Conversions Equal to 0.01384 inch, or approximately 1/72 of an inch.
Rods Conversions Equal to 5.5 yards or 16.5 feet (5.03 meters). Also called a "Pole".
Spans Conversions Distance from the tip of the thumb to the tip of the little finger when the hand is fully extended, formerly used as a unit of measure equal to about nine inches (23 centimeters).
Yard Conversions U.S. Customary System and the British Imperial System, equal to 3 feet, or 36 inches (0.9144 meter).