find out memory size

I need to know how much memory this program unit UTILPKG will need when loaded in memory: How would i findout from this output???

SQL> SELECT * FROM USER_OBJECT_SIZE WHERE NAME = 'UTILPKG'

Here is the output.

NAME SOURCE_SIZE PARSED_SIZE CODE_SIZE RROR_SIZE
--------------------------------------------------------------------------
UTILPKG 122805 152819 25382 0
UTILPKG 26039 0 16859 0