998.21 centimeters is equivalent to 393.03 inches.
This is slightly longer than the height of a standard doorway, which is typically around 80 inches tall.
It is also approximately the same length as an average human arm span, which is typically around 36 inches.
In terms of common household objects, 998.21 centimeters is shorter than a standard single bed (which is usually around 190 cm long) and longer than a standard dining table (which is typically around 240 cm long).