Petabyte (PB)
A petabyte is 10¹⁵ bytes, a thousand terabytes. It measures data-centre storage, scientific data sets and company archives.
Symbol: PB
Quantity: amount of digital information
SI relation: 1 PB = 8 × 10¹⁵ bit (exact)
Derivation: 1 PB = 10¹⁵ bytes = 1000 TB.
Exact: yes, by definition
Typical uses
- Data centres and cloud providers
- Scientific data (telescopes, particle physics)
- Enterprise archives
Convert petabytes to other units
| Conversion | 1 PB equals | Reverse |
|---|---|---|
| petabyte to byte | 1 × 10¹⁵ B | byte to petabyte |
| petabyte to kilobyte | 1000000000000 kB | kilobyte to petabyte |
| petabyte to megabyte | 1000000000 MB | megabyte to petabyte |
| petabyte to gigabyte | 1000000 GB | gigabyte to petabyte |
| petabyte to terabyte | 1000 TB | terabyte to petabyte |
| petabyte to bit | 8 × 10¹⁵ bit | bit to petabyte |
| petabyte to megabit | 8000000000 Mbit | megabit to petabyte |
| petabyte to kibibyte | 976562500000 KiB | kibibyte to petabyte |
| petabyte to mebibyte | 953674316.4 MiB | mebibyte to petabyte |
| petabyte to gibibyte | 931322.5746 GiB | gibibyte to petabyte |
| petabyte to kilobit | 8000000000000 kbit | kilobit to petabyte |
| petabyte to gigabit | 8000000 Gbit | gigabit to petabyte |
| petabyte to tebibyte | 909.4947018 TiB | tebibyte to petabyte |
Open the Data Storage Converter to convert any value between all units.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Petabyte (PB). Retrieved October 25, 2026, from https://scientificconverters.com/units/petabyte/
IEEE
Scientific Converters, "Petabyte (PB)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/units/petabyte/