›› Convert pied de roi to light day


pied de roi
light-day

›› More information from the unit converter

How many pied de roi in 1 light-day? The answer is 79737780225748.
We assume you are converting between pied de roi and light day.
You can view more details on each measurement unit:
pied de roi or light-day
The SI base unit for length is the metre.
1 metre is equal to 3.0784329298739 pied de roi, 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 pied de roi and light days.
Type in your own numbers in the form to convert the units!




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›› Common length conversions

pied de roi to angstrom
pied de roi to mille
pied de roi to sagene
pied de roi to faust
pied de roi to bicron
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pied de roi to light-month
pied de roi to ri
pied de roi to chinese 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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