It doesn’t matter how small the actual file size is because when a file is written on the hard drive, it occupies a discrete number of clusters. Usually, in the NFTS file system, the cluster sizes range from 512 Bytes to 64 KB. For example, the maximum file size supported by the FAT32 file system is 4,294,967,295 bytes. The capacity of file size not only decided by the maximum size of a file, but it is also determined by the number of bits reserved for the information of file size.

A file uses different addresses and to reduce this file system treats the number of files as a single cluster. Obviously, it depends on how your file system stores file on the storage drive. Now the question that comes in our minds is what factors affect this file size on disk. Why is there a difference between Size and Size on Disk Check the screenshot below, and it will clear your basic concepts. That’s the reason why you see the difference between size vs size on disk. When a file is stored in a modern storage device, it usually consumes slightly more storage than the actual file. The size on the disk is the indicator of how much space a file occupies on the hard disk drive. See also: Data capacities – smallest to largest units of information What is the meaning of file size on disk? This size is presented in the form of a byte. The file size is used for the measurement of the data present in the storage device. This value is an indicator of the actual bytes and size in the file. When you click on the properties of a folder or file, you get the value of bytes and size. So, let’s explain both these terms individually. You can find out huge differences after understanding the central concept of both these terms. How to decrease the difference between Size and Size on Disk?.What are the reasons for a large difference between Size and Size on Disk?.Why is there a difference between Size and Size on Disk.

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