Abstract: A printer output calibration system for calibrating various types of printer output to standardized forms. A preprinted calibration sheet having a calibration target where a user causes a computer program to print a calibration mark onto the calibration target. A location is identified where the printed calibration mark lies relative to the calibration target. The calibration target has scaled codes along its sides that allow the user to determine the relative location of the calibration mark on the calibration target. The user then enters the codes into the computer program which takes into account the dimensions of the calibration target relative to the entered codes to calculate a vertical and/or horizontal printer offset which it applies thereafter to the printer output.