INPUT DEVICE

A size-reduced input device is provided.An input device includes a base member, a motor, a rotation shaft, a worm gear, a first gear, a rotor, a movement member, an elastic member, a change amount detection unit, and a controller. The motor is attached to the base member. The rotation shaft is configured to be rotated by the motor. The worm gear is configured to be rotated by the rotation shaft and attached to the rotation shaft so as to be movable in an axial direction of the rotation shaft. The first gear is provided so as to be rotatable relative to the base member and engaged with the worm gear. The rotor is provided so as to be rotatable relative to the base member, includes a second gear engaged with the first gear, and is configured to undergo rotation operation performed by an operator. The movement member is configured to be moved as the worm gear is moved in the axial direction. The elastic member is configured to generate urging force in a direction in which the movement of the movement member is suppressed in accordance with a movement amount of the movement member. The change amount detection unit is configured to detect a change amount of a state that is changed in accordance with the movement of the movement member. The controller is configured to perform drive control for the motor to change a sense of force applied to the operator via the rotor in accordance with the change amount detected by the change amount detection unit.