681.63 centimeters is equal to 268 inches.
This can be compared to the size of a standard door, which is usually around 80 inches in height. It is also close to the height of a tall adult, which is typically around 70-72 inches.
In terms of electronic devices, this is similar to the diagonal screen size of a 63-inch TV or the length of an average laptop which is around 12 inches.
In sports, this is approximately the height of the net in volleyball (240-260 cm) or the height of a basketball hoop (305 cm).
In nature, this is close to the height of a giraffe, which ranges from 410-600 cm. It is also similar to the wingspan of a bald eagle, which can reach up to 235 cm.