## ››Convert astronomical unit to light hour

 astronomical unit light-hour

How many astronomical unit in 1 light-hour? The answer is 7.214359695194.
We assume you are converting between astronomical unit and light hour.
You can view more details on each measurement unit:
astronomical unit or light-hour
The SI base unit for length is the metre.
1 metre is equal to 6.6845871226706E-12 astronomical unit, or 9.2656693110598E-13 light-hour.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between astronomical units and light hours.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of astronomical unit to light-hour

1 astronomical unit to light-hour = 0.13861 light-hour

5 astronomical unit to light-hour = 0.69306 light-hour

10 astronomical unit to light-hour = 1.38612 light-hour

20 astronomical unit to light-hour = 2.77225 light-hour

30 astronomical unit to light-hour = 4.15837 light-hour

40 astronomical unit to light-hour = 5.5445 light-hour

50 astronomical unit to light-hour = 6.93062 light-hour

75 astronomical unit to light-hour = 10.39593 light-hour

100 astronomical unit to light-hour = 13.86124 light-hour

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

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## ››Definition: Astronomical unit

The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).

The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".

## ››Definition: Light-hour

A light-hour (also written light hour) is a unit of length. It is the distance travelled by light in vacuum in one hour. Based on the current definition of the metre a light-hour is equal to 1,079,252,848,800 metres (~1.08 Tm).

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