How many light-second in 1 gm? The answer is 3.3356409519815. We assume you are converting between light second and gigametre. You can view more details on each measurement unit: light-second or gm The SI base unit for length is the metre. 1 metre is equal to 3.3356409519815E-9 light-second, or 1.0E-9 gm. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between light seconds and gigameters. Type in your own numbers in the form to convert the units!
1 light-second to gm = 0.29979 gm
5 light-second to gm = 1.49896 gm
10 light-second to gm = 2.99792 gm
20 light-second to gm = 5.99585 gm
30 light-second to gm = 8.99377 gm
40 light-second to gm = 11.9917 gm
50 light-second to gm = 14.98962 gm
75 light-second to gm = 22.48443 gm
100 light-second to gm = 29.97925 gm
You can do the reverse unit conversion from gm to light-second, or enter any two units below:
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.
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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