## ››Convert centimetre to megametre

 cm megameter

How many cm in 1 megameter? The answer is 100000000.
We assume you are converting between centimetre and megametre.
You can view more details on each measurement unit:
cm or megameter
The SI base unit for length is the metre.
1 metre is equal to 100 cm, or 1.0E-6 megameter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between centimetres and megameters.
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## ››Definition: Centimeter

A centimetre (American spelling centimeter, symbol cm) is a unit of length that is equal to one hundreth of a metre, the current SI base unit of length. A centimetre is part of a metric system. It is the base unit in the centimetre-gram-second system of units. A corresponding unit of area is the square centimetre. A corresponding unit of volume is the cubic centimetre.

The centimetre is a now a non-standard factor, in that factors of 103 are often preferred. However, it is practical unit of length for many everyday measurements. A centimetre is approximately the width of the fingernail of an adult person.

## ››Definition: Megameter

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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