Convert from exameter to hectometer

Unit Definition (exameter)
An exametre (American spelling: exameter, symbol: Em) is a unit of length equal to 1018 metres.

Unit Definition (hectometer)
A hectometre (American spelling: hectometer, symbol: hm) is a measurement of distance equal to 100 metres. This measure is rarely used and is included mostly for completeness, since usage of the SI prefix hecto is no longer recommended.