Table Of Contents
Petabit to petabytes Conversion
1 petabit (Pbit) is equal to 0.125 petabytes (PB).
1 Pbit = 0.125 PB
or
1 PB = 8 Pbit
Formula
To convert a digital storage from petabit (Pbit) to petabytes (PB), divide the digital storage in petabit by 8
d(PB) = d(Pbit) / 8
Examples:
Convert 128 petabit to petabytes:
d(PB) = 128Pbit / 8 = 16 PB
Conversion table
| Petabit (Pbit) | Petabytes (PB) |
|---|---|
| 1 Pbit | 0.125 PB |
| 2 Pbit | 0.25 PB |
| 3 Pbit | 0.375 PB |
| 5 Pbit | 0.625 PB |
| 8 Pbit | 1 PB |
| 10 Pbit | 1.25 PB |
| 16 Pbit | 2 PB |
| 20 Pbit | 2.5 PB |
| 25 Pbit | 3.125 PB |
| 32 Pbit | 4 PB |
| 64 Pbit | 8 PB |
| 128 Pbit | 16 PB |
| 256 Pbit | 32 PB |
| 512 Pbit | 64 PB |
| 1024 Pbit | 128 PB |
| Petabytes (PB) | Petabit (Pbit) |
|---|---|
| 1 PB | 8 Pbit |
| 2 PB | 16 Pbit |
| 3 PB | 24 Pbit |
| 5 PB | 40 Pbit |
| 8 PB | 64 Pbit |
| 10 PB | 80 Pbit |
| 16 PB | 128 Pbit |
| 20 PB | 160 Pbit |
| 25 PB | 200 Pbit |
| 32 PB | 256 Pbit |
| 64 PB | 512 Pbit |
| 128 PB | 1024 Pbit |
| 256 PB | 2048 Pbit |
| 512 PB | 4096 Pbit |
| 1024 PB | 8192 Pbit |
Frequently asked questions
How do I convert petabit to petabytes?
Divide the value in petabit by 8 to get the result in petabytes. For example, 5 Pbit ÷ 8 = 0.625 PB.
How many petabytes are in 1 petabit?
1 petabit (Pbit) is equal to 0.125 petabytes (PB).
How do I convert petabytes back to petabit?
Use the inverse operation: multiply the value in petabytes by 8 to get the result in petabit.
How accurate is the petabit to petabytes conversion?
The converter multiplies by the conversion factor 8 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- IEC 80000-13:2025 — Quantities and units — Part 13: Information science and technology (Edition 2, 2025-02)
- BIPM — The International System of Units (SI Brochure, 9th edition)
- Definitions of the SI units: The binary prefixes (NIST Reference on Constants, Units and Uncertainty)
- NIST Guide to the SI (NIST SP 811), Chapter 4: The Two Classes of SI Units and the SI Prefixes
