›› Convert mile to light day

miles
light day



›› More information from the unit converter

How many miles in 1 light day? The answer is 16094799105.2.
We assume you are converting between mile and light day.
You can view more details on each measurement unit:
miles or light day
The SI base unit for length is the metre.
1 metre is equal to 0.000621371192237 miles, or 3.86069554627E-14 light day.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between miles and light days.
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›› Definition: Mile

A mile is any of several units of distance, or, in physics terminology, of length. Today, one mile is mainly equal to about 1609 m on land and 1852 m at sea and in the air, but see below for the details. The abbreviation for mile is 'mi'. There are more specific definitions of 'mile' such as the metric mile, statute mile, nautical mile, and survey mile. On this site, we assume that if you only specify 'mile' you want the statute mile.


›› 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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