Accurate size of Index

On Oracle 9i or 10g,

After creating an index, either normal or bitmap:
How can you see its accurate size?
I don't mean the amount of extents taken from the free space.
I'm looking for something like the BLOCKS column from USER_TABLES view after performing an ANALYZE operation.

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select sum(bytes/1024) Ks
from dba_segments
where owner='<owner>'
and segment_name = '<index_name>'

hope it helps


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peledcAuthor Commented:

There is also the way of SELECT LEAF_BLOCKS from ind where index_name= '<Index_name>';
and they both produce the same answers.
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