Calibration is the process of comparing an instrument's results to a known average in order to ensure that the readings it produces are accurate. To fix inaccuracies, adjustments or repairs are made, and a detailed calibration report displays measurements performed before and after the test. This data is very essential to understand how accurately the instrument is functioning. In any field, failing to do regular calibration of equipment can result in damage to the instrument, inaccurate data, or a threat to life and property. When any equipment is used for medical purposes, their improper functioning can directly impact and harm somebody’s health and life. If rehab equipment calibration is not done regularly also, similar problems can occur.