21.81 centimeters is equal to 8.59 inches.
To provide comparisons, some objects of similar size to 21.81 centimeters include:
1. A standard sheet of paper: A standard sheet of paper measures 21.59 cm by 27.94 cm, making it slightly smaller than 21.81 cm.
2. A dollar bill: A US dollar bill measures 6.14 cm by 15.59 cm, making it significantly smaller than 21.81 cm.
3. A standard iPhone 12: The iPhone 12 measures 14.67 cm by 7.42 cm, making it slightly smaller than 21.81 cm.
4. A large apple: The average diameter of a large apple is around 8-10 cm, making it slightly smaller than 21.81 cm.
5. A paperback book: Depending on the size, a paperback book typically measures between 19-21 cm in height, making it slightly smaller than 21.81 cm.
In comparison, 21.81 centimeters is larger than a dollar bill or a standard iPhone 12, but smaller than a sheet of paper, a large apple, or a paperback book.