345.17 centimeters is equivalent to 135.99 inches.
To put this length into perspective, it is slightly longer than the average height of a standard office desk, which is approximately 135 cm (53 inches). It is also just slightly shorter than the average height of an adult male, which is approximately 170 cm (66 inches).
In terms of common objects, 345.17 centimeters is roughly the height of a standard refrigerator (140 cm or 55 inches) or the width of a standard door (81 cm or 32 inches). It is also slightly longer than a standard acoustic guitar (110 cm or 43 inches).