It was a bad decision by french revolutionaries: http://www.bipm.org/en/si/history-si/name_kg.html http://www.bipm.org/en/si/history-si/name_kg.html However al

It was a bad decision by french revolutionaries: http://www.bipm.org/en/si/history-si/name_kg.html http://www.bipm.org/en/si/history-si/name_kg.html However all the standard prefixes still apply normally, ie you will have milligrams (mg) that are 1/1000000 of 1kg.