|
|
|
|
|
|
Hectometer or hectometre is a measurement of distance. It is equal to 100 meters. It is a uncommonly used unit of length in the metric system. Plural name is hectometers.
An attometer is a unit of length, a combination of the metric prefix atto (symbol a) and the SI unit of length meter (symbol m), equal to 10−18 meter or 1.0E-18 meter and its symbol is am. Plural name is attometers.