Calculate Occupied Space

Use this dialog box to see the total size, occupied disk space, and other information about selected files and directories. You can also estimate the needed space on disk with the given cluster size.

Dialog Box Options

Total size
Total size of all selected files and directories (all files in directories).
Occupied disk space
The smallest allocation unit on a disk is a cluster. Each file occupies a disk space which is a multiple of the cluster size. Occupied disk space is total disk size occupied by selected files and directories.
Disk space utilization
It is a ratio between the total size and the occupied disk space.
Total compressed size
When you have compressed files on NTFS volume (see NTFS section in File Systems), you can see here the compressed file size.
Compress ratio
It is a ratio between the total compressed size and the total size.
Estimate needed space
For cluster size
Specify the cluster size of a disk where you want to estimate a space needed for storing all selected files and directories. This value is preset to the cluster size of a disk in the inactive panel.
Estimated space
Estimated space for storing all selected files and directories.
Cluster utilization
It is a ratio between the total size and the estimated space.

See Also

Calculating Occupied Space