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.

Symbolic algebra

ⓘ Hint: This calculator supports symbolic math. You can enter numbers, but also symbols like a, b, pi or even whole math expressions such as (a+b)/2. If you still don't sure how to make your life easier using symbolic algebra check out our another page: Symbolic calculations

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

Value
Unit
Decimals

$1$ (bytes) is equal to:#

base units#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
bits	Show source $b$	b	Show source $\text{...}$	-	The smallest information unit. A bit can take one of two states, depending on the context: true and false, 1 and 0, -1 and 1, yes and no, etc.	Show source $...$
bytes	Show source $B$	B	Show source $\text{...}$	-	Equivalent to eight bits. See the bit unit for more information. $1\ B = 8\ b$	Show source $...$

other units#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
nibble	Show source $-$	-	Show source $\text{...}$	-	Equivalent to four bits. See the bit unit for more information. $1\ nibble = 4\ b = \frac{1}{2}\ B$	Show source $...$
octet	Show source $-$	-	Show source $\text{...}$	-	Alternative name for byte. See the byte unit for more information. $1\ octet = 1\ B = 8\ b$	Show source $...$
word 16-bit	Show source $-$	-	Show source $\text{...}$	-	Equivalent to sixteen bits (16b) or two bytes (2B). See the bit or byte units for more information. $16b = 2B$	Show source $...$
24-bit chunks (RGB pixel)	Show source $-$	-	Show source $\text{...}$	-	Equivalent to twenty-four bits (24b) or three bytes (3B). See the bit or byte units for more information. $24b = 3B$	Show source $...$
word 32-bit	Show source $-$	-	Show source $\text{...}$	-	Equivalent to thirty-two bits (32b) or four bytes (4B). See the bit or byte units for more information. $32b = 4B$	Show source $...$
48-bit chunks (HDRI pixel)	Show source $-$	-	Show source $\text{...}$	-	Equivalent to fourty-eight bits (48b) or six bytes (6B). See the bit or byte units for more information. $48b = 6B$	Show source $...$
word 64-bit	Show source $-$	-	Show source $\text{...}$	-	Equivalent to sixty-four bits (64b) or eight bytes (8B). See the bit or byte units for more information. $64b = 8B$	Show source $...$
word 128-bit	Show source $-$	-	Show source $\text{...}$	-	Equivalent to one hundred twenty-eight bits (128b) or sixteen bytes (16B). See the bit or byte units for more information. $128b = 16B$	Show source $...$
word 256-bit	Show source $-$	-	Show source $\text{...}$	-	Equivalent to two hundred fifty-six bits (256b) or thirty-three bytes (32B). See the bit or byte units for more information. $256b = 32B$	Show source $...$
dword (double word)	Show source $-$	-	Show source $\text{...}$	-	Equivalent to thirty-two bits (32b). The size of machine word in IA-32 architecture. $dword = 4B = 32b$	Show source $...$
qword (quad word)	Show source $-$	-	Show source $\text{...}$	-	Equivalent to sixty-four bits (64b). The size of machine word in x64 architecture. $qword = 8B = 64b$	Show source $...$
tword (ten bytes)	Show source $-$	-	Show source $\text{...}$	-	Equivalent to ten bytes (10B) or eighty bits (80b). The size of x87 coprocessor registers (st0-st7). $tword = 10B = 80b$	Show source $...$
dqword (double quad word)	Show source $-$	-	Show source $\text{...}$	-	Equivalent to one hundred twenty-eight bits (128b) or sixteen bytes (16B). The size of MMX registers (mm0-mm7). $dqword = 16B = 128b$	Show source $...$

bits base 1024#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
kibi-bits	Show source $Kib$	Kib	Show source $\text{...}$	-	Equivalent to one thousand twenty four bits (1024 b). See the bit unit for more information. $1\ Kib = 1024\ b$	Show source $...$
mebi-bits	Show source $Mib$	Mib	Show source $\text{...}$	-	Equivalent to one thousand twenty four kibi-bits (1024 Kib). See the bit unit for more information. $1\ Mib = 1024\ Kib = 1048576\ b$	Show source $...$
gibi-bits	Show source $Gib$	Gib	Show source $\text{...}$	-	Equivalent to one thousand twenty four mebi-bits (1024 Mib). See the bit unit for more information. $\begin{aligned}1\ Gib &= 1024\ Mib =\\&= 1048576\ Kib =\\&= 1073741824\ b\end{aligned}$	Show source $...$
tebi-bits	Show source $Tib$	Tib	Show source $\text{...}$	-	Equivalent to one thousand twenty four gibi-bits (1024 Gib). See the bit unit for more information. $\begin{aligned}1\ Tib &= 1024\ Gib =\\&= 1048576\ Mib =\\&= 1073741824\ Kib =\\&= 1099511627776\ b\end{aligned}$	Show source $...$
pebi-bits	Show source $Pib$	Pib	Show source $\text{...}$	-	Equivalent to one thousand twenty four tebi-bits (1024 Tib). See the bit unit for more information. $\begin{aligned}1\ Pib &= 1024\ Tib =\\&= 1048576\ Gib =\\&= 1073741824\ Mib =\\&= 1099511627776\ Kib =\\&= 1125899906842624\ b\end{aligned}$	Show source $...$

bytes base 1024#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
kibi-bytes	Show source $KiB$	KiB	Show source $\text{...}$	-	Equivalent to one thousand twenty four bytes (1024 B). See the byte unit for more information. $1\ KiB = 1024\ B$	Show source $...$
mebi-bytes	Show source $MiB$	MiB	Show source $\text{...}$	-	Equivalent to one thousand twenty four kibi-bytes (1024 KiB). See the byte unit for more information. $1\ MiB = 1024\ KiB = 1048576\ B$	Show source $...$
gibi-bytes	Show source $GiB$	GiB	Show source $\text{...}$	-	Equivalent to one thousand twenty four bytes (1024 MiB). See the byte unit for more information. $\begin{aligned}1\ GiB &= 1024\ MiB =\\&= 1048576\ KiB =\\&= 1073741824\ B\end{aligned}$	Show source $...$
tebi-bytes	Show source $TiB$	TiB	Show source $\text{...}$	-	Equivalent to one thousand twenty four bytes (1024 GiB). See the byte unit for more information. $\begin{aligned}1\ TiB &= 1024\ GiB =\\&= 1048576\ MiB =\\&= 1073741824\ KiB =\\&= 1099511627776\ B\end{aligned}$	Show source $...$
pebi-bytes	Show source $PiB$	PiB	Show source $\text{...}$	-	Equivalent to one thousand twenty four bytes (1024 TiB). See the byte unit for more information. $\begin{aligned}1\ PiB &= 1024\ TiB =\\&= 1048576\ GiB =\\&= 1073741824\ MiB =\\&= 1099511627776\ KiB =\\&= 1125899906842624\ B\end{aligned}$	Show source $...$

bits base 1000 (metric)#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
kilo-bits	Show source $kb$	kb	Show source $\text{...}$	-	Equivalent to one thousand bits (1000 b). See the bit unit for more information. $1\ kb = 1000\ b$	Show source $...$
mega-bits	Show source $Mb$	Mb	Show source $\text{...}$	-	Equivalent to one million bits (1000000 b). See the bit unit for more information. $1\ Mb = 1\ 000\ 000\ b = 10^6\ b$	Show source $...$
giga-bits	Show source $Gb$	Gb	Show source $\text{...}$	-	Equivalent to one billion bits (10⁹ b). See the bit unit for more information. $1\ Gb = 1\ 000\ 000\ 000\ b = 10^9\ b$	Show source $...$
tera-bits	Show source $Tb$	Tb	Show source $\text{...}$	-	Equivalent to one trillion bits (10¹² b). See the bit unit for more information. $1\ Tb = 1\ 000\ 000\ 000\ 000\ b = 10^{12}\ b$	Show source $...$
peta-bits	Show source $Pb$	Pb	Show source $\text{...}$	-	Equivalent to one quadrillion bits (10¹⁵ b). See the bit unit for more information. $1\ Pb = 1\ 000\ 000\ 000\ 000\ 000\ b = 10^{15}\ b$	Show source $...$

bytes base 1000 (metric)#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
kilo-bytes	Show source $kB$	kB	Show source $\text{...}$	-	Equivalent to one thousand bytes (1000 B). See the byte unit for more information.	Show source $...$
mega-bytes	Show source $MB$	MB	Show source $\text{...}$	-	Equivalent to one million bytes (1000000 B). See the byte unit for more information. $1\ MB = 1\ 000\ 000\ b = 10^6\ B$	Show source $...$
giga-bytes	Show source $GB$	GB	Show source $\text{...}$	-	Equivalent to one billion bytes (10⁹ B). See the bit unit for more information. $1\ GB = 1\ 000\ 000\ 000\ b = 10^9\ B$	Show source $...$
tera-bytes	Show source $TB$	TB	Show source $\text{...}$	-	Equivalent to one trillion bytes (10¹² B). See the bit unit for more information. $1\ TB = 1\ 000\ 000\ 000\ 000\ b = 10^{12}\ B$	Show source $...$
peta-bytes	Show source $PB$	PB	Show source $\text{...}$	-	Equivalent to one quadrillion bytes (10¹⁵ B). See the bit unit for more information. $1\ Pb = 1\ 000\ 000\ 000\ 000\ 000\ b = 10^{15}\ B$	Show source $...$

Storage media#

Unit	Symbol	Symbol (plain text)	Value as symbolic	Value as numeric	Notes	Unit conversion formula
Floppy disk 1.20MB	Show source $FDD120$	FDD120	Show source $\text{...}$	-	The capacity of high density (HD) 5¼ inch floppy disk. $1\ 5 ^1/_4\ \text{inch HD} = 1200\ kB$	Show source $...$
Floppy disk 1.44MB	Show source $FDD144$	FDD144	Show source $\text{...}$	-	The capacity of high density (HD) 3½ inch floppy disk. $1\ 3 ^1/_2\ \text{inch HD} = 1440\ kB$	Show source $...$
CD 650MB	Show source $CD650$	CD650	Show source $\text{...}$	-	The capacity of 650 MB compact disc. $1\ \text{CD (650)} = 650\ MiB$	Show source $...$
CD 700MB	Show source $CD700$	CD700	Show source $\text{...}$	-	The capacity of 700 MB compact disc. $1\ \text{CD (700)} = 700\ MiB$	Show source $...$
CD 800MB	Show source $CD800$	CD800	Show source $\text{...}$	-	The capacity of 800 MB compact disc. $1\ \text{CD (800)} = 800\ MiB$	Show source $...$
CD 870MB	Show source $CD870$	CD870	Show source $\text{...}$	-	The capacity of 870 MB compact disc. $1\ \text{CD (870)} = 870\ MiB$	Show source $...$
DVD (single layer)	Show source $DVD5$	DVD5	Show source $\text{...}$	-	The capacity of single layer DVD disc. $1\ \text{DVD5 disc} = 4.38\ GiB$	Show source $...$
DVD (double layer)	Show source $DVD7$	DVD7	Show source $\text{...}$	-	The capacity of double layer DVD disc. $1\ \text{DVD5 disc} = 7.90\ GiB$	Show source $...$
Blu-ray (single layer)	Show source $BD1$	BD1	Show source $\text{...}$	-	The capacity of single layer Blu-ray disc. $\begin{aligned}1\ \text{BD-SL disc} &= 23866\ MiB \approx\\&\approx 23.3\ GiB\end{aligned}$	Show source $...$
Blu-ray (double layer)	Show source $BD2$	BD2	Show source $\text{...}$	-	The capacity of double layer Blu-ray disc. $\begin{aligned}1\ \text{BD-DL disc} &= 47732\ MiB \approx\\&\approx 46.61\ GiB\end{aligned}$	Show source $...$
Blu-ray (BDXL3 100GB)	Show source $BD100$	BD100	Show source $\text{...}$	-	The capacity of three layer Blu-ray disc. $\begin{aligned}1\ \text{BD-XL3 disc} &= 95466\ MiB \approx\\&\approx 93.23\ GiB\end{aligned}$	Show source $...$
Blu-ray (BDXL4 128GB)	Show source $BD128$	BD128	Show source $\text{...}$	-	The capacity of four layer Blu-ray disc. $\begin{aligned}1\ \text{BD-XL4 disc} &= 122072\ MiB \approx\\&\approx 119.21\ GiB\end{aligned}$	Show source $...$

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.
Examples:
- 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.

Tags and links to this website#

Tags:

data_store · data_size · bytes · bits · data_storage_units_converter

Tags to Polish version:

ilosc_danych · bajty_bity · konwerter_jednostek_ilosci_danych

What tags this calculator has#

CONVERTER · UNITS · IT/COMPUTERS · A -> Z (all)

Permalink#

This is permalink. Permalink is the link containing your input data. Just copy it and share your work with friends:

https://calculla.com/data_store?inUnitId=byte&inValue=$symbolic(1)&inPrecision=9

Links to external sites (leaving Calculla?)#

Ancient version of this site - links#

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: v1.calculla.com. We left the version 1 of Calculla untouched for archival purposes.
Direct link to the old version: "Calculla v1" version of this calculator