Calibrating a scale before it is used is quite possibly one of the most important steps that an owner can take to ensure that their readings are accurate. What is calibration? Calibration is basically the comparison of the reading that your scale gives you against a standard value (an object with a weight that you are already sure of), and the adjustment of the scale accordingly. An improperly calibrated scale is essentially useless, as it will give you the wrong results every time you use it. If you have recently purchased a scale or it's simply been a while since you last calibrated your digital scale, follow the instructions below in order to make certain that your scale is in proper working order.