170.78 centimeters is equal to 67.2 inches.
This measurement is approximately the height of the average adult woman.
In comparison, a tennis racket is about 68.58 centimeters (27 inches) in length, making the length of 170.78 centimeters slightly longer than a tennis racket.
Another comparison could be to a standard door, which is usually 80 inches tall. 67.2 inches is just under the height of the door, showing that 170.78 centimeters is quite tall.
Additionally, the length of 170.78 centimeters is roughly equivalent to the diagonal length of a 55-inch television screen. This shows that the measurement is longer than the width of a common household television.