990.3 centimeters is equivalent to 389.843701 inches.
Some comparisons to known objects of similar size are:
1. Approximately the height of a standard refrigerator (between 361-431 inches).
2. Slightly taller than the height of a basketball hoop (368 inches).
3. Slightly shorter than the height of the Empire State Building (443 inches).
4. About 8 times the length of a standard pencil (48 inches).
5. Almost 17 times the width of a standard smartphone (23 inches).
6. Approximately 5 times the diameter of a large pizza (75 inches).