Converter of data storage units
Data units converter. Converts bits, bytes, megabytes, gigabytes itd. All known units of data in two different bases: 1000 and 1024. This calculator handles some less known data units: nibbles, octets, pixels (24/48-bit), words, quads, long-words etc.

Inputs data - value and unit, which we're going to convert


1 (bytes) is equal to:

(plain text)
bitsShow sourcebbb8
bytesShow sourceBBB1

(plain text)
nibblesShow source2
octetsShow source1
words 16-bitShow source0.5
24-bit chunks (RGB pixel)Show source0.333333333
words 32-bitShow source0.25
dwords (double words)Show source0.25
48-bit chunks (HDRI pixel)Show source0.166666667
words 64-bitShow source0.125
words 128-bitShow source0.0625
words 256-bitShow source0.0625

(plain text)
kibi-bitsShow sourceKibKibKib0.0078125
mebi-bitsShow sourceMibMibMib0.000007629
gibi-bitsShow sourceGibGibGib7.450580597×10-9
tebi-bitsShow sourceTibTibTib7.275957614×10-12
pebi-bitsShow sourcePibPibPib7.105427358×10-15

(plain text)
kibi-bytesShow sourceKiBKiBKiB0.000976563
mebi-bytesShow sourceMiBMiBMiB9.536743164×10-7
gibi-bytesShow sourceGiBGiBGiB9.313225746×10-10
tebi-bytesShow sourceTiBTiBTiB9.094947018×10-13
pebi-bytesShow sourcePiBPiBPiB8.881784197×10-16

(plain text)
kilo-bitsShow sourcekbkbkb0.008
mega-bitsShow sourceMbMbMb0.000008
giga-bitsShow sourceGbGbGb8×10-9
tera-bitsShow sourceTbTbTb8×10-12
peta-bitsShow sourcePbPbPb8×10-15

(plain text)
kilo-bytesShow sourcekBkBkB0.001
mega-bytesShow sourceMBMBMB0.000001
giga-bytesShow sourceGBGBGB1×10-9
tera-bytesShow sourceTBTBTB1×10-12
peta-bytesShow sourcePBPBPB1×10-15

(plain text)
Floppy disk 1.20MBShow sourceFDD120FDD120FDD1207.94728597×10-7
Floppy disk 1.44MBShow sourceFDD144FDD144FDD1446.622738308×10-7
CD 650MBShow sourceCD650CD650CD6501.467191256×10-9
CD 700MBShow sourceCD700CD700CD7001.362391881×10-9
CD 800MBShow sourceCD800CD800CD8001.192092896×10-9
CD 870MBShow sourceCD870CD870CD8701.096177375×10-9
DVD (single layer)Show sourceDVD1DVD1DVD12.13117294×10-10
DVD (double layer)Show sourceDVD2DVD2DVD21.170003234×10-10
Blu-ray (single layer)Show sourceBD1BD1BD13.725290298×10-11
Blu-ray (double layer)Show sourceBD2BD2BD21.862645149×10-11
Blu-ray (BDXL 100GB)Show sourceBD100BD100BD1009.313225746×10-12
Blu-ray (BDXL 128GB)Show sourceBD128BD128BD1287.275957614×10-12

Some facts

  • The most basic and smallest unit of information is one bit.
  • Another common unit is - byte. It's equivalent to 8 bits (octet).
  • However, single byte had different meaning in the past. In the first years of computer era single byte had no clear definition. It was usualy defined as number of bits processed by computer at one time. This definition is obsolete now and has only historical meaning. One byte is always equivalent to 8 bits nowadays.
  • Abbreviation corresponding to one bit is a lowercase b (1b), and capital letter B (1B) for one byte. Using the same character to denote two different units often leads to confusions.
    For example, bandwidth of internet connection is usually given in bits per seconds (and derived units), for example: 10Mb/s or 10Mbps (10 megabits per second). Less oriented users often read it incorrectly as 10 megabytes per second. To avoid that, common pattern is to use "10 Mbit" instead of "10 Mb".

How to convert

  • Enter the number to field "value" - enter the NUMBER only, no other words, symbols or unit names. You can use dot (.) or comma (,) to enter fractions.
    • 1000000
    • 123,23
    • 999.99999
  • Find and select your starting unit in field "unit". Some unit calculators have huge number of different units to select from - it's just how complicated our world is...
  • And... you got the result in the table below. You'll find several results for many different units - we show you all results we know at once. Just find the one you're looking for.

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In December 2016 the Calculla website has been republished using new technologies and all calculators have been rewritten. Old version of the Calculla is still available through this link: We left the version 1 of Calculla untouched for archival purposes.
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