DU command can be used to find the space used in human readable format like GB and Mb
Below is an example in my system showing size and corresponding folder names.
[Janni@repoCram]$ du -h /home/acce/temp
3.6G /home/accu/temp/cream/Windows/SEI/SEI6xPatRel3patches
3.0G /home/accu/temp/cream/Windows/SEI/patches
7.4G /home/accu/temp/cream/Windows/SEI/SEI6xPatRel7patches
5.0G /home/accu/temp/cream/Windows/SEI/Oct2013
6.4G /home/accu/temp/cream/Windows/SEI/SEI6xPatRel7patches1
2.6M /home/accu/temp/cream/Windows/SEI/test/SCM-bin
7.1G /home/accu/temp/cream/Windows/SEI/test
4.4G /home/accu/temp/cream/Windows/SEI/SEI6xPatRel4patches
5.0G /home/accu/temp/cream/Windows/SEI/Oct2013_old
2.6M /home/accu/temp/cream/Windows/SEI/latest/bCM-bin