22 centimeters is equal to 8.66 inches.
To provide comparisons to known objects of similar size, 8.66 inches is slightly shorter than the width of a standard piece of paper (8.5 inches). It is also shorter than the length of a dollar bill (6.14 inches) and the width of a regular laptop (12 inches). On the other hand, it is longer than the length of a credit card (3.37 inches) and the height of a DVD case (7.5 inches).