A system, computer readable storage medium and method for calibrating sensors of a human interface device having a first accelerometer and a second accelerometer. The method includes calibrating the first accelerometer, calibrating the second accelerometer, and calibrating a combined-sensor output that includes contributions from the first accelerometer and the second accelerometer to generate combined-sensor conversion values. The method further includes adjusting the calibration of the first accelerometer in accordance with the combined-sensor conversion values.