# How much is 1 byte, kilobyte, megabyte, gigabyte, etc.?

Below is a list of each of the accepted disk drive space values. It is important to realize that not all manufacturers and developers use binary base 2. For example, a manufacturer may list a product's capacity as one gigabyte (1,000,000,000 bytes, a metric value) and not 1,073,741,824 bytes (gibibyte) that it actually is. For this page, we are using the "common names" and listing all values in base 2.

Note: All values are whole numbers, which means a GB shows it can only contain one 650MB CD, but 1GB could hold 1.5753... of a 650MB CD. Since we created this document to illustrate how much each value can contain in whole, no decimal values are shown. In other words, you can only fit one complete 650MB CD on a 1GB drive since two full 650MB discs exceed 1GB.

Tip: With the exception of a bit and a nibble, all values explained below are in bytes and not bits. For example, a Kilobyte (KiB) is different than a Kilobit (Kb). When referring to storage, bytes are used. When referring to transmission speeds, bits are used.

## Bit

A bit is a value of either a 1 or 0 (on or off).

## Nibble

A Nibble is 4 bits.

## Byte

Today, a Byte is 8 bits.

**1**character, e.g. "a", is one byte.

## Kilobyte (KB)

A Kilobyte is 1,024 bytes.

**2 or 3**paragraphs of text.

## Megabyte (MB)

A Megabyte is 1,048,576 bytes or 1,024 Kilobytes

**873**pages of plaintext (1,200 characters)**4**books (200 pages or 240,000 characters)

## Gigabyte (GB)

A Gigabyte is 1,073,741,824 (2^{30}) bytes. 1,024 Megabytes, or 1,048,576 Kilobytes.

**894,784**pages of plaintext (1,200 characters)**4,473**books (200 pages or 240,000 characters)**640**web pages (with 1.6MB average file size)**341**digital pictures (with 3MB average file size)**256**MP3 audio files (with 4MB average file size)**1**650MB CD

## Terabyte (TB)

A Terabyte is 1,099,511,627,776 (2^{40}) bytes, 1,024 Gigabytes, or 1,048,576 Megabytes.

**916,259,689**pages of plaintext (1,200 characters)**4,581,298**books (200 pages or 240,000 characters)**655,360**web pages (with 1.6MB average file size)**349,525**digital pictures (with 3MB average file size)**262,144**MP3 audio files (with 4MB average file size)**1,613**650MB CD's**233**4.38GB DVD's**40**25GB Blu-ray discs

## Petabyte (PB)

A Petabyte is 1,125,899,906,842,624 (2^{50}) bytes, 1,024 Terabytes, 1,048,576 Gigabytes, or 1,073,741,824 Megabytes.

**938,249,922,368**pages of plaintext (1,200 characters)**4,691,249,611**books (200 pages or 240,000 characters)**671,088,640**web pages (with 1.6MB average file size)**357,913,941**digital pictures (with 3MB average file size)**268,435,456**MP3 audio files (with 4MB average file size)**1,651,910**650MB CD's**239,400**4.38GB DVD's**41,943**25GB Blu-ray discs

## Exabyte (EB)

An Exabyte is 1,152,921,504,606,846,976 (2^{60}) bytes, 1,024 Petabytes, 1,048,576 Terabytes, 1,073,741,824 Gigabytes, or 1,099,511,627,776 Megabytes.

**960,767,920,505,705**pages of plaintext (1,200 characters)**4,803,839,602,528**books (200 pages or 240,000 characters)**687,194,767,360**web pages (with 1.6MB average file size)**366,503,875,925**digital pictures (with 3MB average file size)**274,877,906,944**MP3 audio files (with 4MB average file size)**1,691,556,350**650MB CD's**245,146,535**4.38GB DVD's**42,949,672**25GB Blu-ray discs

## Zettabyte (ZB)

A Zettabyte is 1,180,591,620,717,411,303,424 (2^{70}) bytes, 1,024 Exabytes, 1,048,576 Petabytes, 1,073,741,824 Terabytes, 1,099,511,627,776 Gigabytes, or 1,125,899,910,000,000 Megabytes.

**983,826,350,597,842,752**pages of plaintext (1,200 characters)**4,919,131,752,989,213**books (200 pages or 240,000 characters)**703,687,443,750,000**web pages (with 1.6MB average file size)**375,299,970,000,000**digital pictures (with 3MB average file size)**281,474,977,500,000**MP3 audio files (with 4MB average file size)**1,732,153,707,691**650MB CD's**251,030,052,003**4.38GB DVD's**43,980,465,111**25GB Blu-ray discs

## Yottabyte (YB)

A Yottabyte is 1,208,925,819,614,629,174,706,176 (2^{80}) bytes, 1,024 Zettabytes, 1,048,576 Exabytes, 1,073,741,824 Petabytes, 1,099,511,627,776 Terabytes, 1,125,899,910,000,000 Gigabytes, or 1,152,921,500,000,000,000 Megabytes.

**1,007,438,183,012,190,978,921**pages of plaintext (1,200 characters)**5,037,190,915,060,954,894**books (200 pages or 240,000 characters)**720,575,937,500,000,000**web pages (with 1.6MB average file size)**384,307,166,666,666,666**digital pictures (with 3MB average file size)**288,230,375,000,000,000**MP3 audio files (with 4MB average file size)**1,773,725,384,615,384**650MB CD's**257,054,773,251,740**4.38GB DVD's**45,035,996,273,704**25GB Blu-ray discs

## Is there anything bigger than a Yottabyte?

As of 2015, there are no approved standard sizes for anything bigger than a Yottabyte. However, the two standards that have been proposed are the Hellabyte or Brontobyte.

## How are you calculating the above values?

Calculating the above values is simple once you know the values of each of the above sizes. For example, in the Gigabyte section above, we know that 1 gigabyte is equal to 1,024 Megabytes. Therefore to determine how many 4MB MP3 files are in a Gigabyte, we take 1,024 / 4 which equals 256 or 256 4MB MP3 files in one gigabyte.

Tip: You can also use our search engine to search engine and our conversion tool also to convert and compare between values.