Petabytes to Kilobits
An instant petabytes-to-kilobits converter, with the formula and a reference table below.
| Petabytes | Kilobits |
|---|---|
| 1 PB | 8e+12 Kb |
| 2 PB | 1.6e+13 Kb |
| 3 PB | 2.4e+13 Kb |
| 5 PB | 4e+13 Kb |
| 10 PB | 8e+13 Kb |
| 25 PB | 2e+14 Kb |
| 50 PB | 4e+14 Kb |
| 100 PB | 8e+14 Kb |
How to use
- Enter a value in the Petabytes field.
- The Kilobits figure appears immediately — no button to press.
- Typing in the Kilobits field converts back to Petabytes the same way.
- Use the reference table for the values that come up most often.
Petabytes to Kilobits formula
To convert petabytes to kilobits, multiply by 8e+12.
Kb = PB × 8e+12
Why this factor: the petabyte and the kilobit are both defined against the byte, so dividing one definition by the other gives 8e+12 directly. Both definitions are set out in full below.
To go the other way, divide by 8e+12 — or use the Kilobits to Petabytes converter, which is the same calculation reversed.
Worked example
Start with 4 PB. Multiply by 8e+12 to get 3.2e+13 Kb.
4 PB × 8e+12 = 3.2e+13 Kb
The converter above does this for any value you type, in either direction.
What is a petabyte?
A petabyte is a thousand terabytes — the scale of large-scale data infrastructure.
Definition: Exactly 1×10¹⁵ bytes under SI prefixes.
Where it is used: Data-centre and cloud storage footprints, scientific datasets, and media archives.
What is a kilobit?
A kilobit is 1,000 bits, used almost exclusively for data rates.
Definition: Exactly 1,000 bits, so exactly 125 bytes.
Where it is used: Audio and video bitrates, and legacy connection speeds.
Petabytes vs Kilobits
The petabyte and the kilobit belong to the same family of units, so converting between them is usually a matter of shifting a decimal point or applying a small whole-number factor.
Frequently asked questions
How many kilobits are in a petabyte?
One petabyte equals 8e+12 kilobits.
What is the formula to convert petabytes to kilobits?
Multiply the number of petabytes by 8e+12. To reverse it, divide by 8e+12 instead.
How do I convert kilobits back to petabytes?
Divide by 8e+12, which is the same as multiplying by 1.25e-13.
How many kilobits are in 10 petabytes?
10 PB works out to 8e+13 Kb.
How is the petabyte defined?
Exactly 1×10¹⁵ bytes under SI prefixes.