Technically the US is using the metric system. Per the Mendenhall Order of 1893, all customary length and mass units were redefined to be based on international metric standards. The Imperial system units commonly used in the US are just conversion factors of metric units.
Technically the US is using the metric system. Per the Mendenhall Order of 1893, all customary length and mass units were redefined to be based on international metric standards. The Imperial system units commonly used in the US are just conversion factors of metric units.