Petabytes to Bytes Converter
Enter the data size in petabytes below to convert it to bytes.
Convert Petabytes to Bytes
Enter a value in petabytes (PB) to convert to bytes (B).
Petabyte to Byte Conversion Table
Table showing various petabyte measurements converted to bytes. Click any preset value or arrow to load it into the converter.
| Petabytes (PB) | Bytes (B) |
|---|---|
| 0.0000001 PB | 100,000,000 B |
| 0.0000002 PB | 200,000,000 B |
| 0.0000003 PB | 300,000,000 B |
| 0.0000004 PB | 400,000,000 B |
| 0.0000005 PB | 500,000,000 B |
| 0.0000006 PB | 600,000,000 B |
| 0.0000007 PB | 700,000,000 B |
| 0.0000008 PB | 800,000,000 B |
| 0.0000009 PB | 900,000,000 B |
| 0.00000001 PB | 10,000,000 B |
How to Convert Petabytes to Bytes
To convert petabytes to bytes, multiply the data size by the following conversion ratio: 1e+15 bytes/petabyte.
Since one petabyte is equal to 1e+15 bytes, you can use this simple formula to convert:
The data size in bytes is equal to the data size in petabytes multiplied by 1e+15.
For example, here's how to convert 5 petabytes to bytes using the formula above.
How Many Bytes Are in a Petabyte?
There are 1e+15 bytes in a petabyte, which is why we use this value in the formula above.
Our petabyte to byte calculator automatically converts your data size measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Petabytes and bytes are both units used to measure data size. Keep reading to learn more about each unit.
What Is a Petabyte?
A petabyte is a unit of data size equal to 1e+15 bytes (B), the base unit for data size. SI decimal standard: 10¹⁵ bytes (1,000 TB). [1]
The petabyte is classified as a metric and SI-compatible unit of data size. Petabytes can be abbreviated as PB; for example, 1 petabyte can be written as 1 PB.
In the metric system, "peta" is the standard SI prefix for quadrillions, or 10¹⁵. This makes the petabyte (PB) a convenient decimal multiple of the byte (B).
In practice, petabytes (PB) are widely used across large-scale industrial, bulk, and macro-level data size specifications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Byte?
8 binary bits. It serves as a primary reference unit for measuring data size across scientific and practical applications. [2]
The byte is classified as an IEC binary unit of data size. Bytes can be abbreviated as B; for example, 1 byte can be written as 1 B.
As the primary coherent reference unit for data size in this category, all other data size units are mathematically anchored to the byte (B).
In practice, bytes (B) are widely used across standard data size applications within IEC binary workflows, engineering documentation, and technical data sheets.
When converting data size between petabytes (PB) and bytes (B), keep full floating-point precision (1 PB = 1e+15 B; 1 B = 1e-15 PB) during intermediate calculations and round only the final byte figure to match your instrument tolerance.
More Petabyte & Byte Conversions
Need to calculate in the opposite direction? Use our bytes to petabytes calculator to switch your starting unit immediately. You can also explore related tools such as converting bytes to petabytes, converting bits to bytes, or converting megabytes to gigabytes.
Frequently Asked Questions
References
- [1]NIST / IEC StandardNIST / IEC (IEC 80000-13 Binary Prefixes)·Digital Storage Metrology Standard — Petabytes (PB) to Bytes (B)
- [2]BIPM SpecificationBIPM (SI Decimal Prefixes (k, M, G, T, P))·Unit Specifications: Petabyte (Decimal) (PB) & Byte (B)
- [3]NIST CUU ReferenceNIST CUU (SI Prefixes & Decimal Multiples)·Conversion Factors & Mathematical Basis (PB to B)