An electronic device for supporting a virtual keyboard is provided. The electronic device includes an interface unit configured to receive a touch input and display the virtual keyboard, and a controller configured to generate a control point based on calibration points, the calibration points being included in a first set of calibration points for configuration of the virtual keyboard, the control point being movably disposed on the interface unit relative to the first set of calibration points, and generate a graphical representation of the virtual keyboard on the interface unit based on the control point, the virtual keyboard being adjustable relative to movement of the control point in a direction of the second set of calibration points.