1 significant figure
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Feet:Inches Decimal Fractions
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Note: For a pure decimal result please select 'decimal' from the options above the result.
A lightyear is the distance that light travels in one year. Since there are various definitions for the length of a year, there are correspondingly slightly different values for a lightyear. One lightyear corresponds to about 9.461e15 m, 5.879e12 mi, or 63239.7 AU, or 0.3066 pc.
The foot is a unit of length used in the imperial and U.S. customary measurement systems, representing 1/3 of a yard, and is subdivided into twelve inches.
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Created:Fri 31 Oct 2003 this page last updated:: Wed 08 Feb 2013