# Kilometers to Light-seconds

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vCalc.Kilometers to Light-seconds
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The Kilometers to Light-Seconds calculator converts a measurement of length in kilometers to light-seconds.

INSTRUCTIONS: Choose units and enter the following:

• (km)  This is the distance in kilometers

Light-Seconds(LS):  The calculator returns the distance (D) in light-seconds.  However, this can be automatically converted to other units via the pull-down menu.

#### The Math / Science

A light-second is the distance light travels in one second.