›› Convert foot to light day


feet
light-day

›› More information from the unit converter

How many feet in 1 light-day? The answer is 84980539275591.
We assume you are converting between foot and light day.
You can view more details on each measurement unit:
feet or light-day
The SI base unit for length is the metre.
1 metre is equal to 3.2808398950131 feet, or 3.8606955462749E-14 light-day.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between feet and light days.
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›› Definition: Foot

A foot (plural: feet) is a non-SI unit of distance or length, measuring around a third of a metre. There are twelve inches in one foot and three feet in one yard.


›› Definition: Light-day

A light day (also written light-day) is a unit of length. It is defined as the distance light travels in an absolute vacuum in one day (of 86,400 seconds) or 25,902,068,371,200 metres (~26 Tm).

Note that this value is exact, since the metre is actually defined in terms of the speed of light. The light day isn't very frequently used at all since there are few astronomical objects or distances of that magnitude; the Oort cloud, for example, is thought to extend between 290 and 580 light-days out from the Sun.


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