Petabytes to Kibibytes (PB to KiB)
1 petabyte equals 976,562,500,000 kibibytes exactly.
How to convert petabytes to kibibytes
To convert petabytes to kibibytes, multiply the number of petabytes by 976,562,500,000. This factor is exact. To go the other way, multiply kibibytes by 1.024×10⁻¹².
kibibytes = petabytes × 976,562,500,000
Example: 10 petabytes = 9,765,625,000,000 kibibytes.
Decimal prefixes (kB, MB, GB) are powers of 1,000; binary prefixes (KiB, MiB, GiB) are powers of 1,024. Storage makers use decimal; Windows reports binary but labels it GB.
About these units
Petabyte (PB)
1,000 terabytes (10¹⁵ bytes). The scale of large data centers.
Peta entered the SI in 1975, when the General Conference on Weights and Measures approved peta and exa in its Resolution 10. A petabyte is 10 to the fifteenth bytes, or 1,000 terabytes, and the word is formed by attaching that prefix to byte, a term Werner Buchholz coined in June 1956 as a deliberate respelling of bite. The binary counterpart is the pebibyte: the IEC amendment published in January 1999 added pebi and exbi to the earlier binary names.
Decimal units dominate at this size: hard drives, SSDs, optical discs and network contracts all use powers of 1,000, and macOS, iOS, Android and Ubuntu follow suit. As an example of the size, one petabyte is about 2,000 years of MP3-encoded music at roughly one megabyte per minute. Binary use of the P symbol is less common than for smaller prefixes.
1 petabyte = 1×10¹⁵ bytes (exactly).
Sources: Wikipedia: Petabyte; BIPM: SI prefixes; Wikipedia: Binary prefix
Kibibyte (KiB)
Exactly 1,024 bytes (2¹⁰). The IEC name for the binary kilobyte, used by operating systems and memory specifications.
Kibibyte is the first of the names the IEC approved in December 1998 for binary multiples, built from kilobinary. The IUPAC's Interdivisional Committee on Nomenclature and Symbols had proposed binary prefixes in 1995, and the IEC published them in January 1999. The symbol KiB adds an i to the SI symbol, with the K capitalized. NIST says the names keep the first two letters of each SI prefix and add bi, to signal binary.
One KiB is exactly 1,024 bytes, about 2.4 percent more than a kilobyte. The standard is now IEC 80000-13, supported by the BIPM, IEC and NIST. In practice the symbols are rarely used outside a few places such as KDE and Qt-based applications, which can switch between SI and binary units. Donald Knuth jokingly suggested in 1999 calling it a large kilobyte, KKB.
1 kibibyte = 1,024 bytes (exactly).
Sources: NIST: Prefixes for binary multiples; Wikipedia: Kibibyte
Related conversions
- Kibibytes to petabytes (reverse)
- Petabytes to bytes
- Petabytes to kilobytes
- Petabytes to megabytes
- Petabytes to gigabytes
- Petabytes to terabytes
- Petabytes to bits
- Petabytes to mebibytes
- Petabytes to gibibytes
- Petabytes to tebibytes
- Petabytes to kilobits
- Petabytes to megabits
- Petabytes to gigabits
- Bytes to kibibytes
- Kilobytes to kibibytes
- Megabytes to kibibytes
- Gigabytes to kibibytes
- Terabytes to kibibytes
- Bits to kibibytes
- Mebibytes to kibibytes
- Gibibytes to kibibytes
- Tebibytes to kibibytes
- Kilobits to kibibytes
- Megabits to kibibytes
- Gigabits to kibibytes
See all digital storage units.