Kilobits to Petabytes
Type a value in either box to convert between kilobits and petabytes. The factor is 1.25e-13.
| Kilobits | Petabytes |
|---|---|
| 1 Kb | 1.25e-13 PB |
| 2 Kb | 2.5e-13 PB |
| 3 Kb | 3.75e-13 PB |
| 5 Kb | 6.25e-13 PB |
| 10 Kb | 1.25e-12 PB |
| 25 Kb | 3.125e-12 PB |
| 50 Kb | 6.25e-12 PB |
| 100 Kb | 1.25e-11 PB |
How to use
- Enter a value in the Kilobits field.
- The Petabytes figure appears immediately — no button to press.
- Typing in the Petabytes field converts back to Kilobits the same way.
- Use the reference table for the values that come up most often.
Kilobits to Petabytes formula
To convert kilobits to petabytes, multiply by 1.25e-13.
PB = Kb × 1.25e-13
Why this factor: the kilobit and the petabyte are both defined against the byte, so dividing one definition by the other gives 1.25e-13 directly. Both definitions are set out in full below.
To go the other way, divide by 1.25e-13 — or use the Petabytes to Kilobits converter, which is the same calculation reversed.
Worked example
Start with 4 Kb. Multiply by 1.25e-13 to get 5e-13 PB.
4 Kb × 1.25e-13 = 5e-13 PB
The converter above does this for any value you type, in either direction.
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.
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.
Kilobits vs Petabytes
The kilobit and the petabyte 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 petabytes are in a kilobit?
One kilobit equals 1.25e-13 petabytes.
What is the formula to convert kilobits to petabytes?
Multiply the number of kilobits by 1.25e-13. To reverse it, divide by 1.25e-13 instead.
How do I convert petabytes back to kilobits?
Divide by 1.25e-13, which is the same as multiplying by 8e+12.
How many petabytes are in 10 kilobits?
10 Kb works out to 1.25e-12 PB.
How is the kilobit defined?
Exactly 1,000 bits, so exactly 125 bytes.