This site requires JAVASCRIPT support, currently you don't have.

Size Converter

What is the Units of Memory?

A computer processor is made up of multiple decisive circuits, each one of which may be either OFF or ON. These two states in terms of memory are represented by a 0 or 1. In order to count higher than 1, such bits (BInary digiTS) are suspended together. A group of eight bits is known as a byte. 1 byte can represent numbers between zero (00000000) and 255 (11111111), or 28 = 256 distinct positions. Of course, these bytes may also be combined to represent larger numbers. The computer represents all characters and numbers internally in the same fashion. Our size converter achieves transforms between those units.

What does size converter do?

Your comprehensive size converter, converting units of memory like Bytes to KB to MB to GB to TB to PB and Bits to KiB to MiB to GiB to TiB to PiB or between Bytes and Bits.

What is the Byte?

Byte is the basic unit of digital information transmission and storage, used extensively in information technology, digital technology, and other related fields. It is one of the smallest units of memory in computer technology, as well as one of the most basic data measurement units in programming. The earliest computers were made with the processor supporting 1 byte commands, because in 1 byte you can send 256 commands. 1 byte consists of 8 bits, which go together as one unit in storage, processing or transmission of digital information.

What is the Megabyte?

One megabyte is equal to 1, 000 KBs and antecedes the gigabyte (GB) unit of memory measurement. A megabyte is 106 or 1, 000, 000 bytes and is abbreviated as “MB”. 1 MB is technically 1, 000, 000 bytes, therefore, megabytes are often used synonymously with mebibytes, which contain exactly 1, 048, 576 bytes. Megabytes are mostly used to measure the size of large files. For example, a high-resolution JPEG image might range in size from 1-5 megabytes. A 3-minute song saved in a compressed version may be roughly 3MB in size, and the uncompressed version may take up to 30 MB of disk space. Compact Disk’s capacity is measured in megabytes (approx 700 to 800 MB), whereas the capacity of most other forms of media drives, such as hard drives and flash drives, is generally measured in gigabytes or terabytes.

What is the GigaByte?

One gigabyte is equal to 1, 000 MBs and precedes the terabyte(TB) unit of memory measurement. A gigabyte is 109 or 1, 000, 000, 000 bytes and is abbreviated as “GB”. 1 GB is technically 1, 000, 000, 000 bytes, therefore, gigabytes are used synonymously with gibibytes, which contain exactly 1, 073, 741, 824 bytes. Gigabytes, are sometimes also abbreviated as “gigs, ” and are often used to measure storage device’s capacity. e.g., a standard DVD drive can hold 4.7 GBs of data. Storage devices that hold 1, 000 GB of data or more are measured in terabytes.

What is the TeraByte?

One terabyte is equal to 1, 000 GBs and precedes the petabyte(PB) unit of memory measurement. A terabyte is 1012 or 1, 000, 000, 000, 000 bytes and is abbreviated as “TB”. 1 TB is technically 1 trillion bytes, therefore, terabytes and tebibytes are used synonymously, which contains exactly 1, 099, 511, 627, 776 bytes (1, 024 GB). Mostly the storage capacity of large storage devices is measured in TeraBytes. Around 2007, consumer hard drives reached a capacity of 1 TeraByte. Now, HDDs are measured in Terabytes e.g., a typical internal HDD may hold 2 Terabytes of data whereas some servers and high-end workstations that contain multiple hard drives may even have a total storage capacity of over 10 Terabytes.

What is the PetaByte?

One petabyte is equal to 1, 000 TBs and precedes the exabyte unit of memory measurement. A petabyte is 1015 or 1, 000, 000, 000, 000, 000 bytes and is abbreviated as “PB”. A petabyte is lesser in size than a pebibyte, which contains exactly 1, 125, 899, 906, 842, 624 bytes. Most of the storage devices can hold a maximum of a few TBs, therefore, petabytes are rarely used to measure memory capacity of a single device. Instead, PetaBytes are used to measure the total data stored in large networks or server farms. For example, Internet Giants like Google and Facebook store more than over 100 PBs of data on their data servers.

What is the ExaByte?

One exabyte is equal to 1, 000 PBs and precedes the zettabyte unit of memory measurement. An exabyte is 1018 or 1, 000, 000, 000, 000, 000, 000 bytes and is abbreviated as “EB”. Exabytes are lesser than exbibytes, which contain exactly 1, 152, 921, 504, 606, 846, 976 bytes. The exabyte unit of memory measurement is so large, that it is not used to measure the capacity of storage devices. Even the data storage capacity of the biggest cloud storage centers is measured in PetaBytes, which is a fraction of 1 EB. Instead, exabytes measure the amount of data over multiple data storage networks or the amount of data that is being transferred over the Internet for a certain amount of time. E.g., several hundred exabytes of data is transferred over the Internet every year.

What is the ZettaByte?

One zettabyte is equal to 1, 000 exabytes or 1021 or 1, 000, 000, 000, 000, 000, 000, 000 bytes. A zettabyte is a little bit smaller than zebibyte that contains 1, 180, 591, 620, 717, 411, 303, 424 bytes, and is abbreviated as “ZB”. One zettabyte contains one billion TBs or one sextillion bytes which means it will take one billion one terabyte hard drives to store one zettabyte of data. Generally, Zettabyte is used to measure the large amounts of data and all the data in the world is just a few zettabytes.

What is the YottaByte?

One yottabyte is equal to 1, 000 zettabytes. It is the largest SI unit of memory measurement. A yottabyte is 1024 ZettaBytes or 1, 000, 000, 000, 000, 000, 000, 000, 000 bytes and is abbreviated as “YB”. It is a little bit smaller than yobibyte, which contains exactly 1, 208, 925, 819, 614, 629, 174, 706, 176 bytes bytes. 1 yottabyte contains one septillion bytes which are exactly the same as one trillion TBs. It is a very large number that humans can evaluate. There is no practical use of such a large measurement unit because all the data in the world made of just a few zettabytes.

What are the Misconceptions?

The size on a disk with one KB is 1024 Bytes although it signifies 1, 000 Bytes of data. It’s just the old standard everyone remembers. The download speed Kbps is 1, 000 Bits per second, not 1, 024 Bits per second.


NameEqual ToSize(In Bytes)
Bit1 Bit1/8
Byte4 Bits1
Kilobyte1024 Bytes1024
Megabyte1024 Kilobytes1 ,048 ,576
Gigabyte1024 Megabytes1 ,073 ,741 ,824
Terrabyte1024 Gigabytes1 ,099 ,511 ,627 ,776
Petabyte1024 Terrabytes1 ,125 ,899 ,906 ,842 ,624
Exabyte1024 Petabytes1 ,152 ,921 ,504 ,606 ,846 ,976
Zettabyte1024 Exabytes1 ,180 ,591 ,620 ,717 ,411 ,303 ,424
Yottabyte1024 Zettabytes1 ,208 ,925 ,819 ,614 ,629 ,174 ,706 ,176


WikipediaByte EncyclopediaGeeksForGeeksUnderstanding File Sizes