About File Size (KB GB TB etc.)

File size measures the size of a Computer File. Typically it is measured in bytes with a prefix. The actual amount of Disk Space consumed by the file depends on the File System. The maximum file size a file system supports depends on the number of Bits reserved to store size information and the total size of the file system. For example, with FAT32, the size of one file cannot be equal or larger than 4 Gib. Some common file size units are:

• 1 byte = 8 bits
• 1 kib = 1,024 bytes
• 1 Mib = 1,048,576 bytes
• 1 Gib = 1,073,741,824 bytes
• 1 Tib = 1,099,511,627,776 bytes

Conversion Table :-

Symbol	Name	Binary Measurement	Decimal Measurement	Number of Bytes	Equal to
KB	KiloByte	210	103	1,024	1,024 B
MB	MegaByte	220	106	1,048,576	1,024 KB
GB	Giga Byte	230	109	1,073,741,824	1,024 MB
TB	Tera Byte	240	1012	1,099,511,627,776	1,024 GB
PB	Peta Byte	250	1015	1,125,899,906,842,624	1,024 TB
EB	Exa Byte	260	1018	1,152,921,504,606,846,976	1,024 PB
ZB	Zetta Byte	270	1021	1,180,591,620,717,411,303,424	1,024 EB
YB	YottaByte	280	1024	1,208,925,819,614,629,174,706,176	1,024 ZB