Tons (register) to bushels (US) conversion calculator shown above calculates how many bushels (US) are in 'X' tons (register) (where 'X' is the number of tons (register) to convert to bushels (US)). In order to convert a value from tons (register) to bushels (US) (from RT to bu) type the number of RT to be converted to bu and then click on the 'convert' button.