Convert Petabytes to Bytes (PB to B)
1 petabyte (PB) = 1 × 10¹⁵ bytes (B). 1 B = 1 × 10⁻¹⁵ PB. Example: 15 PB = 15 × 1 × 10¹⁵ = 1.5 × 10¹⁶ B.
Also searched as petabytes to B, petabytes in B, petabytes into bytes, PB to B, PB in bytes, PB into byte, petabyte to byte, PB to bytes converter and how many bytes in a petabyte.
1 PB = 1e15 B
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk petabyte to byte converter to paste a column from Excel.
How to Convert Petabyte to Byte
- 1 PB = 1 × 10¹⁵ B
- 1 B = 1 × 10⁻¹⁵ PB
- Example: convert 15 PB to B: 15 PB = 15 × 1 × 10¹⁵ B = 1.5 × 10¹⁶ B
Formula
B = PB × 1 × 10¹⁵
Derivation from SI units:
- 1 PB = 10¹⁵ bytes = 1000 TB.
- 1 byte = 8 bits (an octet).
- 1 PB = 8 × 10¹⁵ bit ÷ 8 bit per B = 1 × 10¹⁵ B
Both units are defined exactly, so the factor is exact. Petabyte definition: petabyte; Byte definition: byte.
Worked examples
- A reading of 1 PB converts to 1 × 10¹⁵ B.
1 PB × 1 × 10¹⁵ = 1 × 10¹⁵ B - A value of 10 PB is 1 × 10¹⁶ B.
10 PB × 1 × 10¹⁵ = 1 × 10¹⁶ B
Petabyte to Byte conversion table
| Petabytes (PB) | Bytes (B) |
|---|---|
| 0.1 PB | 100000000000000 B |
| 0.5 PB | 500000000000000 B |
| 1 PB | 1 × 10¹⁵ B |
| 2 PB | 2 × 10¹⁵ B |
| 5 PB | 5 × 10¹⁵ B |
| 10 PB | 1 × 10¹⁶ B |
| 50 PB | 5 × 10¹⁶ B |
| 100 PB | 1 × 10¹⁷ B |
Where it's used
Petabytes are used for data centres and cloud providers, while bytes appear in file and memory sizes. Both measure amount of digital information, so the conversion is a fixed factor.
Petabyte to other data storage units
| Conversion | 1 PB equals |
|---|---|
| petabyte to byte | 1 × 10¹⁵ B |
| petabyte to kilobyte | 1000000000000 kB |
| petabyte to megabyte | 1000000000 MB |
| petabyte to gigabyte | 1000000 GB |
| petabyte to terabyte | 1000 TB |
| petabyte to bit | 8 × 10¹⁵ bit |
| petabyte to megabit | 8000000000 Mbit |
| petabyte to kibibyte | 976562500000 KiB |
Show 5 more units
| petabyte to mebibyte | 953674316.4 MiB |
|---|---|
| petabyte to gibibyte | 931322.5746 GiB |
| petabyte to kilobit | 8000000000000 kbit |
| petabyte to gigabit | 8000000 Gbit |
| petabyte to tebibyte | 909.4947018 TiB |
Frequently asked questions
How many bytes are in 1 petabyte?
1 PB = 1 × 10¹⁵ B.
How do I convert petabytes to bytes?
Multiply the value in PB by 1 × 10¹⁵. For example, 15 PB × 1 × 10¹⁵ = 1.5 × 10¹⁶ B.
Is the PB to B conversion exact?
Yes. Both units are defined exactly, and 1 PB is exactly 1 × 10¹⁵ B.
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). Convert Petabytes to Bytes (PB to B). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/petabytes-to-bytes/
IEEE
Scientific Converters, "Convert Petabytes to Bytes (PB to B)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/petabytes-to-bytes/