31.02 centimeters is equivalent to approximately 12.20 inches.
This measurement is larger than the length of a standard pencil (7 inches), but about the same as the length of a standard ruler (12 inches). It is also roughly the same size as a large book (11-12 inches in height). Compared to a common electronic device, 31.02 centimeters is smaller than an average laptop (13-15 inches) but larger than a standard smartphone (5-6 inches).