Nautical miles per day to centimeters per second conversion calculator shown above calculates how many centimeters per second are in 'X' nautical miles per day (where 'X' is the number of nautical miles per day to convert to centimeters per second). In order to convert a value from nautical miles per day to centimeters per second (from nmi/d to cm/s) type the number of nmi/d to be converted to cm/s and then click on the 'convert' button.