1. A method of measuring a location of a terminal based on an accuracy of measuring the location, the method comprising: calculating the accuracy of measuring the location, of each of at least two location measurement types, based on the location of the terminal; setting a window with respect to a predetermined area including the location of the terminal when the accuracy of measuring the location converges within a predetermined range; recalculating the accuracy of measuring the location based on map information in the window; selecting one of the at least two location measurement types based on the accuracy of measuring the location, of each of the at least two location measurement types; and measuring the location of the terminal based on the selected one of the at least two location measurement types.