How many light-second in 1 light-hour?
The answer is 3600.
We assume you are converting between light second and light hour.
You can view more details on each measurement unit: light-second or
light-hour
The SI base unit for length is the metre.
1 metre is equal to 3.3356409519815E-9 light-second, 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 light seconds and light hours.
Type in your own numbers in the form to convert the units!

A light-second is a unit of length. It is defined as the distance light travels in an absolute vacuum in one second or 299,792,458 meters. Note that this value is considered exact, since the meter is actually (as of 1983) defined in terms of the light second. It is just over 186,282 miles and almost 109 feet.

››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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