31.1 centimeters is equal to 12.244 inches.
This is slightly longer than the length of a standard US dollar bill, which measures approximately 6 inches long.
31.1 centimeters is also slightly shorter than the length of a standard laptop computer, which measures around 12.8 inches diagonally.
It is slightly longer than the average smartphone, which ranges from 5.5 to 6.5 inches in length.
31.1 centimeters is similar in size to a standard ruler, which typically measures 12 inches in length.
It is also similar in size to a small water bottle, which can range from 10 to 12 inches tall.