26 units · base unit b · 1

Digital storage converter

A kilobyte is 1000 bytes; a kibibyte is 1024. Drive makers use the first, operating systems often show the second, and that gap is why a "1 TB" drive reports 931 GB.

0.125B
✓ Exact 1 b = 0.125 B
As a fraction: 1/8
1 b = 0.125 B

Common digital storage conversions

All digital storage units

Each unit expressed in bits (b), the unit everything in this category converts through.

Unit Symbol System Value in b
Bit b other 1
Nibble nibble other 4
Byte B other 8
Kilobit kb metric 1000
Megabit Mb metric 1000000
Gigabit Gb metric 1000000000
Terabit Tb metric 1000000000000
Petabit Pb metric 1000000000000000
Exabit Eb metric 1000000000000000000
Kilobyte kB metric 8000
Megabyte MB metric 8000000
Gigabyte GB metric 8000000000
Terabyte TB metric 8000000000000
Petabyte PB metric 8000000000000000
Exabyte EB metric 8000000000000000000
Kibibit Kib other 1024
Mebibit Mib other 1048576
Gibibit Gib other 1073741824
Tebibit Tib other 1099511627780
Kibibyte KiB other 8192
Mebibyte MiB other 8388608
Gibibyte GiB other 8589934592
Tebibyte TiB other 8796093022210
Pebibyte PiB other 9007199254740000
Exbibyte EiB other 9223372036850000000
Block block other 4096

About digital storage units

Convert bytes, kilobytes, kibibytes, megabytes, gigabytes and terabytes — decimal and binary kept distinct.

A kilobyte is 1000 bytes; a kibibyte is 1024. Drive makers use the first, operating systems often show the second, and that gap is why a "1 TB" drive reports 931 GB.

Dimensional formula: 1. Every conversion on this page goes through the bit, using exact fractions rather than decimal approximations. Read how that works →