Convert petabytes to bytes
Converting petabytes to bytes is a common data task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 PB equals 1.0000e+15 B, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert petabytes to bytes
To convert petabytes to bytes, multiply the number of petabytes by 1.0000e+15. For example, 10 PB × 1.0000e+15 = 1.0000e+16 B.
B = PB × 1.0000e+15
- Write down the value in petabytes you want to convert.
- Multiply it by 1.0000e+15 (the exact PB→B factor).
- The result is your value in bytes. Check it below with the converter or the table.
Conversion table
Common values of petabytes and their equivalents in bytes:
| PB | B |
|---|---|
| 1 | 1.0000e+15 |
| 2 | 2.0000e+15 |
| 3 | 3.0000e+15 |
| 4 | 4.0000e+15 |
| 5 | 5.0000e+15 |
| 10 | 1.0000e+16 |
| 20 | 2.0000e+16 |
| 25 | 2.5000e+16 |
| 50 | 5.0000e+16 |
| 100 | 1.0000e+17 |
| 250 | 2.5000e+17 |
| 500 | 5.0000e+17 |
About these units
Petabyte (PB). A petabyte is 1,000 terabytes, a scale used by data centers, streaming services and scientific experiments. Large language models are trained on petabytes of text.
Byte (B). A byte is 8 bits and holds a single text character. It is the base unit for measuring digital information, from file sizes to memory capacity.
Frequently asked questions
How do I convert petabytes to bytes?
To convert petabytes to bytes, multiply the number of petabytes by 1.0000e+15. For example, 10 PB × 1.0000e+15 = 1.0000e+16 B. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many bytes are in 1 petabyte?
1 PB = 1.0000e+15 B. That is the fixed relationship used by this converter and by international standards.
How many petabytes are in 1 byte?
1 B = 1.0000e-15 PB. If you are converting in the opposite direction, use our Byte to Petabyte converter for the dedicated table and FAQ.
Is the petabytes to bytes conversion exact?
Yes — this site uses decimal SI prefixes, so 1 KB = 1,000 bytes exactly. Note that some operating systems report file sizes in binary units (1 KiB = 1,024 bytes), which can make numbers differ slightly from storage labels.
What is petabyte used for?
A petabyte is 1,000 terabytes, a scale used by data centers, streaming services and scientific experiments. Large language models are trained on petabytes of text.