How to convert terabytes to petabytes
PB = TB × 0.001Multiply the value in terabytes by 0.001. To go the other way, multiply by 1,000 (or divide by 0.001).
A terabyte is smaller than a petabyte: it takes 1,000 terabytes to make one petabyte.
Worked examples
- 1 terabyte1 TB × 0.001 = 0.001 PB
- 5 terabytes5 TB × 0.001 = 0.005 PB
- 10 terabytes10 TB × 0.001 = 0.01 PB
- 20 terabytes20 TB × 0.001 = 0.02 PB
- 100 terabytes100 TB × 0.001 = 0.1 PB
Terabytes to petabytes conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Terabytes (TB) | Petabytes (PB) |
|---|---|
| 0.1 TB | 0.0001 PB |
| 0.25 TB | 0.00025 PB |
| 0.5 TB | 0.0005 PB |
| 1 TB | 0.001 PB |
| 2 TB | 0.002 PB |
| 3 TB | 0.003 PB |
| 4 TB | 0.004 PB |
| 5 TB | 0.005 PB |
| 6 TB | 0.006 PB |
| 7 TB | 0.007 PB |
| 8 TB | 0.008 PB |
| 9 TB | 0.009 PB |
| 10 TB | 0.01 PB |
| Terabytes (TB) | Petabytes (PB) |
|---|---|
| 12 TB | 0.012 PB |
| 15 TB | 0.015 PB |
| 20 TB | 0.02 PB |
| 25 TB | 0.025 PB |
| 30 TB | 0.03 PB |
| 40 TB | 0.04 PB |
| 50 TB | 0.05 PB |
| 75 TB | 0.075 PB |
| 100 TB | 0.1 PB |
| 250 TB | 0.25 PB |
| 500 TB | 0.5 PB |
| 1,000 TB | 1 PB |
About the units
Terabyte (TB)
10¹² bytes. Hard drives and SSDs are marketed in decimal terabytes. One terabyte equals 8,000,000,000,000 bits (b).
Petabyte (PB)
The petabyte (PB) is a unit of data storage in the International System of Units (SI). One petabyte equals 8×10¹⁵ bits (b).
Frequently asked questions
How many petabytes are in one terabyte?
There are 0.001 petabytes in one terabyte, and this value is exact by definition.
How do I convert terabytes to petabytes?
Multiply the number of terabytes by 0.001. For example, 10 TB × 0.001 = 0.01 PB.
How many terabytes are in one petabyte?
One petabyte equals 1,000 terabytes. That is the reverse factor, 1 ÷ 0.001.
What is 10 terabytes in petabytes?
10 TB = 0.01 PB.
Is this TB to PB converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.