![]() ![]() If you save the 1 KB file in a file system with 32KB clusters, the file will take up 32 KB disk space. For instance, if you save a 1 KB file in a file system with 2 KB clusters, the size on disk will take up 2 KB. No matter how small each actual file size, the file that is written to the hard drive will occupy a discrete number of clusters. Usually, common cluster sizes can range from 512 Bytes to 64 KB (NTFS file system). For example, the maximum file size that FAT32 file system supports is 4,294,967,295 bytes. The maximum file size that a file system can support is not only decided by the capacity of the file system, but also by the number of bits reserved for the file size information. To reduce the number of addresses that are being used by the files, the file system will treat a number of bytes as a single cluster. So, what affects the file size on disk? In fact, it depends on the way that your file system stores the file on the hard drive. Read More What Affects the File Size on Disk ![]() That is why you find there is a difference between size and size on disk. When a file is written to the file system of a modern storage device, it may take up slightly more disk space than the actual file size. The size on disk indicates the number of bytes that the file actually takes up on the hard disk drive. The numbers inside the red box are the actual file size. The file size measures how much data a file contains on the storage device. The values indicate the actual size and the actual number of bytes in the file. When opening the properties of a file, folder, or drive, you will find the values of the size and bytes. So, this section will explain the definition of size and size on disk separately. To figure out the size vs size on disk huge difference, you need to understand their own concept. What does mean "Size" and "Size on disk" for a file? I've read a post just like this that has been solved but I didn't get my answer. I was looking on properties of a file and saw two little bit confusing things that make me confused. For example, a user from SuperUser reported that size on disk is always lager than size. They want to know why there is such a huge difference between size and size on disk. Some people reported this question on forums or communities. However, a great many people still notice there is a big difference between size and size on disk when opening the properties of a file or folder. Most of the time, the values between size and size on disk are very close. How to Narrow the Size VS Size on Disk Huge Difference.Why There Is Big Difference Between Size VS Size on Disk.Do you know why? How to narrow the size vs size on disk huge difference? If you are also searching for the answers, this post of MiniTool is your best choice. You may find the difference between size and size on disk. ![]()
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