convert data storage

enter value
select unit
decimal place 
bit (bit)
byte (B)
kilobit (Kbit)
kilobyte (KB)
megabit (Mbit)
megabyte (MB)
gigabit (Gbit)
gigabyte (GB)
terabit (Tbit)
terabyte (TB)
petabit (Pbit)
petabyte (PB)
floppy disk (3,5 ", DD)
floppy disk (3,5 ", HD)
floppy disk (5,25 ", DD)
floppy disk (5,25 ", HD)
Zip 100
Zip 250
Jaz 1GB
Jaz 2GB
CD (74 minute)
CD (80 minute)
DVD (1 layer)
DVD (2 layer)
Blu-ray (1 layer)
Blu-ray (2 layer)
HD-DVD (1 layer)
HD-DVD (2 layer)

Calculations are based on binary prefix « base 2 » (soon we will include the SI prefix « base 10 »). A binary prefix is a unit prefix for multiples of units in data processing, data transmission, and digital information, notably the bit and the byte, to indicate multiplication by a power of 2 [more about binary prefix].

The storage capacity of a device is its characteristic that specifies the maximum amount of information it can contain. Units like kilobyte (KB), megabyte (MB) and gigabyte (GB) are commonly used to express the size of the data.