How many megametre in 1 siriometer?
The answer is 149597870000.
We assume you are converting between megametre and siriometre.
You can view more details on each measurement unit: megametre or
siriometer
The SI base unit for length is the metre.
1 metre is equal to 1.0E-6 megametre, or 6.684587153547E-18 siriometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between megameters and siriometers.
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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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