PV size is reported as 50GB but is physically 54GB

[Gabriel M Dragffy]

Hi,

I have a partition /dev/hds3 that is set as a physical volume for my
LVM, a disc partitioning program will report the partition as being 54G,
however the LVM says it is 50G, why would this be so?

I also have another discrepency in sizes reported by LVM, or for example
using df. However I have saved that for another topic as I think it is
unrelated to this particular question.

Gabe