Micrometers per second to miles per hour converter on this page calculates how many miles per hour are in 'X' micrometers per second (where 'X' is the number of micrometers per second to convert to miles per hour). In order to convert a value from micrometers per second to miles per hour (from μm/s to mph) type the number of μm/s to be converted to mph and then click on the 'convert' button.