Nautical miles per day to feet per hour converter above calculates how many feet per hour are in 'X' nautical miles per day (where 'X' is the number of nautical miles per day to convert to feet per hour). In order to convert a value from nautical miles per day to feet per hour (from nmi/d to ft/h) type the number of nmi/d to be converted to ft/h and then click on the 'convert' button.