# How much is 13 zettabytes?

It's about 5,500,000 times as much as The US Census Bureau
The amount of The US Census Bureau is about 0.00000240 zettabytes.
(a.k.a. United States Census Bureau, a.k.a. Bureau of the Census) (2010 figures) (total active data)
The United States Census Bureau administers 0.00000240 zettabytes of demographic and population data gathered through the decennial census and other surveys. The Census Bureau makes the results of each census public 72 years after they are gathered.
It's about 4,500,000 times as much as Netflix's catalog
The amount of Netflix's catalog is about 0.000002990 zettabytes.
(May, 2013 figures)
The uncompressed source copies of all the movies available for viewing on Netflix total 0.000002990 zettabytes. According to estimates, videos streamed from Netflix account for about 29% of all Internet traffic, as of 2013.
It's about 3,000,000 times as much as The Letters Delivered by the US Postal Service in 2010
The amount of The Letters Delivered by the US Postal Service in 2010 is about 0.00000400 zettabytes.
(2010 figures)
All letters delivered by the United States Postal Service in 2010 will equate to 0.00000500 zettabytes of data if stored digitally. In delivering the mail, the Postal Service fleet travels a total of 1.25 billion miles annually.
It's about 300,000 times as much as Mozy
The amount of Mozy is about 0.0000400 zettabytes.
(2009 figures) (total file storage)
Mozy, the online data backup service, stores about 0.0000500 zettabytes of data backed up its users. Founded in 2005, Mozy's customer base has grown to 1 million personal and 60,000 business subscribers in just 5 years.
It's about 200,000 times as much as The Books in the Library of Congress
The amount of The Books in the Library of Congress is about 0.0000600 zettabytes.
(2009 figures) (digitized entire collection)
The total collection of books, photographs, and other media housed by the United States Library of Congress would occupy about 0.0000700 zettabytes if fully digitized. The collection contains a total of 142,544,498 items as of 2009.
It's about 30,000 times as much as The Spotify Catalog
The amount of The Spotify Catalog is about 0.0005 zettabytes.
(2018 figures)
Spotify, the music streaming service that serves over 170 million users per year, hosts a data catalog of about 0.0005 zettabytes on a Google Cloud Platform solution. In 2017, users listened to Spotify for a total of over 40.3 billion hours.
It's about 3,000 times as much as The Internet
The amount of The Internet is about 0.004 zettabytes.
(2005 figures) (estimated)
Although the Internet is continuously changing, a 2005 estimate by Google CEO Eric Schmidt was that the total amount of data on the Internet would measure about 0.005 zettabytes. An estimated 1 trillion web pages are published on the Internet, excluding photos, videos, and music content.
It's about three-tenths as much as All Spoken Words in Human History (recorded)
The amount of All Spoken Words in Human History (recorded) is about 42 zettabytes.
(2003 figures) (assumes 16 Khz, 16-bit mono recording)
Criticizing a 2002 estimate of 0.0049 zettabytes, linguist and University of Pennsylvania professor Mark Liberman asserted that it would actually require 42 zettabytes to house a recording of all speech in human history, even at a relatively low level of quality. For the purposes of his calculations, Liberman estimated the total duration of such a project to include 416,390,367 years of continuous audio.
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