Convert from hectometer to thou

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.

Unit Definition (thou)
An inch is an Imperial unit of length. Sweden also briefly had a "decimal inch" based on the metric system: see below for more.