How many light-second in 1 megametre? 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 megametre The SI base unit for length is the metre. 1 metre is equal to 3.3356409519815E-9 light-second, or 1.0E-6 megametre. 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 megametre = 299.79246 megametre
2 light-second to megametre = 599.58492 megametre
3 light-second to megametre = 899.37737 megametre
4 light-second to megametre = 1199.16983 megametre
5 light-second to megametre = 1498.96229 megametre
6 light-second to megametre = 1798.75475 megametre
7 light-second to megametre = 2098.54721 megametre
8 light-second to megametre = 2398.33966 megametre
9 light-second to megametre = 2698.13212 megametre
10 light-second to megametre = 2997.92458 megametre
You can do the reverse unit conversion from megametre 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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