A counting scale includes a weighing pan, a weighing sensor connected to the weighing pan, a storage unit including a registered data table storing, as registered data, a unique identification number, an article name, and a unit weight with respect to one article, an arithmetic processing unit configured to urge placement of one piece of the target article on the weighing pan, calculate a unit weighed value of the one piece of the target article from the weighing sensor, narrow down registered data including a unit weight within a predetermined range with respect to the unit weighed value as candidate data from the registered data table, and obtain sorted candidate data by selecting and sorting the candidate data in ascending order of absolute value of deviation from the unit weighed value, and a display unit configured to display the sorted candidate data.