Accurately and quickly calculated is a calibrating parameter for detecting an eye-gaze coordinate, of an operator, in an input image from a capturing unit worn on a user.An eye-gaze detecting device (100) detects an eye-gaze coordinate of a user in an input image from a capturing unit (104) wearable on the user, and includes: an eye movement detecting unit (101) detecting an eye movement of the user; a calibration object detecting unit (105) (i) receiving the input image, (ii) determining whether or not there is an object available as a calibration object in the input image, and (iii) providing a position coordinate indicating a position of the object in the case where the available object is determined to be included in the input image; a voice instructing unit (108) providing an instruction to the user to look at the calibration object indicated in the position coordinate; a calibration parameter calculating unit (106) calculating a calibration parameter with a use of the eye movement information of the user receiving the instruction and the position coordinate of the calibration object; and a calibrating unit (102) calibrating the eye movement information to the eye-gaze coordinate with a use of the calculated calibration parameter.