30.29 cm is equivalent to 11.93 inches.
Some common objects with similar sizes are:
– A standard 12-inch ruler (30.48 cm)
– The length of a standard sheet of paper (which measures 11 inches by 8.5 inches, or 27.94 cm by 21.59 cm)
– The height of a standard water bottle (which measures around 11-12 inches, or 27.94-30.48 cm)
– The depth of a standard laptop (which typically ranges from 0.7-1 inch, or 1.78-2.54 cm)