Multiples of bytes Decimal Value Metric 1000 kB kilobyte 1000 2 MB megabyte 1000 3 GB gigabyte 1000 4 TB terabyte 1000 5 PB petabyte 1000 6 EB exabyte 1000 7 ZB zettabyte 1000 8 YB yottabyte Binary Value JEDEC IEC 1024 KB kilobyte KiB kibibyte 1024 2 MB megabyte MiB mebibyte 1024 3 GB gigabyte GiB gibibyte 1024 4 - - TiB tebibyte 1024 5 - - PiB pebibyte 1024 6 - - EiB exbibyte 1024 7 - - ZiB zebibyte 1024 8 - - YiB yobibyte Large Numbers Number SI Prefix Symbol Descript