Looking at the properties for a Windows file I get two attributes, “Size” and “Size on disk,” and "Size on disk" is always larger.
What do these two metrics mean?
filesystemswindows
Looking at the properties for a Windows file I get two attributes, “Size” and “Size on disk,” and "Size on disk" is always larger.
What do these two metrics mean?
Best Answer
Size is the actual size of the file in bytes.
Size on disk is the actual amount of space being taken up on the disk. They differ because the disk is divided into tracks and sectors, and can allocate blocks of discrete size.
Editing
For a more detailed explanation, see this text which I copied from another site:
Source: What's The Difference Between Size And Size On Disk In Windows Folder Properties.