Keywords: Metric system adoption map.svg green Countries which have officially adopted the metric system gray Countries which have not officially adopted the metric system US Myanmar Liberia cwi Own work Derived from BlankMap-World6 svg by en User Canuckguy at en wikipedia Released under <nowiki> </nowiki> Information based on data from the CIA World Factbook Original 2009-03-18 Modifications 2009-05-15 User Cflm001 <sub> †’<span style color 773 >Aza</span><span style color 359 >Toth</span></sub> SVG maps of the world International System of Units Map Maps needing South Sudan political boundaries |