How many light-second in 1 megametres? The answer is 0.0033356409519815. We assume you are converting between light second and megametre. You can view more details on each measurement unit: light-second or megametres The SI base unit for length is the metre. 1 metre is equal to 3.3356409519815E-9 light-second, or 1.0E-6 megametres. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between light seconds and megameters. Type in your own numbers in the form to convert the units!
1 light-second to megametres = 299.79246 megametres
2 light-second to megametres = 599.58492 megametres
3 light-second to megametres = 899.37737 megametres
4 light-second to megametres = 1199.16983 megametres
5 light-second to megametres = 1498.96229 megametres
6 light-second to megametres = 1798.75475 megametres
7 light-second to megametres = 2098.54721 megametres
8 light-second to megametres = 2398.33966 megametres
9 light-second to megametres = 2698.13212 megametres
10 light-second to megametres = 2997.92458 megametres
You can do the reverse unit conversion from megametres 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 megametre (American spelling: megameter, symbol: Mm) is a unit of length equal to 10^6 metres (from the Greek words megas = big and metro = count/measure). Its customary equivalent is 621.37 miles.
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