Quettabyte

A quettabyte (QB) is a unit of measurement that has yet to be used in technology. One quettabyte holds 1000 ronnabytes (RB), 1030 (1,000,000,000,000,000,000,000,000,000,000 or one nonillion) bytes, or 1,000,000 yottabytes (YB), making it the largest data measurement unit in the International System of Units (SI).

No computer or supercomputer has yet to reach this magnitude of data, it is too large of a unit for current computing. 

 Background 
The term "quettabyte" was introduced in 2022 to address the rapidly increasing amount of data generated and stored worldwide, particularly with the rise of big data, artificial intelligence, and the Internet of Things (IoT). As technology continues to advance, the need for such large-scale units of measurement has become essential.

However, there is no singular technological object as of March 2026 that can hold this amount of information.

 Conversion 

 One quettabyte is equal to:
 1,000 ronnabytes (RB)
 106 yottabytes (YB)
 109 zettabytes (ZB)
 1012 exabytes (EB)
 1015 petabytes (PB)
 1018 terabytes (TB)
 1021 gigabytes (GB)
 1024megabytes (MB)
 1027 kilobytes (KB)
 1030 bytes (B)
 8·1030 bits (b)

Category:Computer science
Category:Units of information