What are kilobytes, megabytes, and gigabytes?
Answer: The size of computer data is measured in bytes. Just like a kilometer is a measure of 1000 meters, kilobytes, megabytes, and gigabytes are larger measurements of bytes. These units use SI prefixes, which is short for the "International System of Units." The correlation of kilobytes, megabytes, and gigabytes is listed below:
- kilobyte = 1000 (or 1024) bytes
- megabyte = 1000 (or 1024) kilobytes
- gigabyte = 1000 (or 1024) megabytes
To avoid this ambiguity, data can also be expressed in Kibibytes, Mebibytes, and Gibibytes, which are always multiplied by 1024. For more information, view this Help Center article.
In case you're wondering, the units continue to go up in multiples of 1000 after gigabyte. Here is the complete list:
- byte (B)
- kilobyte (KB) - 1000^1
- megabyte (MB) - 1000^2
- gigabyte (GB) - 1000^3
- terabyte (TB) - 1000^4
- petabyte (PB) - 1000^5
- exabyte (EB) - 1000^6
- zettabyte (ZB) - 1000^7
- yottabyte (YB) - 1000^8