## ››Convert light day to gigametre

 light-day gigameter

How many light-day in 1 gigameter? The answer is 3.8606955462749E-5.
We assume you are converting between light day and gigametre.
You can view more details on each measurement unit:
light-day or gigameter
The SI base unit for length is the metre.
1 metre is equal to 3.8606955462749E-14 light-day, or 1.0E-9 gigameter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light days and gigameters.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of light-day to gigameter

1 light-day to gigameter = 25902.06837 gigameter

2 light-day to gigameter = 51804.13674 gigameter

3 light-day to gigameter = 77706.20511 gigameter

4 light-day to gigameter = 103608.27348 gigameter

5 light-day to gigameter = 129510.34186 gigameter

6 light-day to gigameter = 155412.41023 gigameter

7 light-day to gigameter = 181314.4786 gigameter

8 light-day to gigameter = 207216.54697 gigameter

9 light-day to gigameter = 233118.61534 gigameter

10 light-day to gigameter = 259020.68371 gigameter

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You can do the reverse unit conversion from gigameter to light-day, or enter any two units below:

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## ››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.

## ››Definition: Gigameter

A gigametre (American spelling: gigameter, symbol: Gm) is a unit of length equal to 10^9 metres. Its customary equivalent is 621,371 miles.

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