Digital Data Storage
TBtoPB
Convert terabytes (TB) to petabytes (PB).
Factor1 TB = 0.001 PB
Converter
TB
Accepts numbers or expressions, e.g. 150 + 14.7
Result
PB
Rendered to 6 significant figures.
Formula
Formula
PB = TB × 0.001
Multiply any value in terabytes by 0.001 to obtain the value in petabytes.
Worked example
Convert 1000 TB to PB.
- 01Start with 1000 TB.
- 02Multiply by the conversion factor: 1000 × 0.001 = 1 PB.
Result1000 TB = 1 PB
Conversion table
| TB | PB |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from TB to PB?
1 TB equals 0.001 PB. To convert, multiply the value in terabytes by 0.001.
How do I convert 1 TB to PB?
1 TB = 0.001 PB. For any value, multiply by 0.001.
How do I convert PB back to TB?
Divide by the same factor — or equivalently, multiply by 1000. So 1 PB = 1000 TB.
When would I need to convert terabyte to petabyte?
Digital data-storage conversions between TB and PB are routine in IT, networking, storage-array engineering, datacenter capacity planning, cloud-cost reconciliation, embedded systems and scientific data acquisition. Decimal (SI) units (kB, MB, GB, TB, PB) use base-10 multiples: 1 kB = 1,000 bytes. Binary (IEC 80000-13) units (KiB, MiB, GiB, TiB, PiB) use base-2 multiples: 1 KiB = 1,024 bytes. 1 byte = 8 bits exactly across both ladders. This category is storage size only — it does NOT cover data-transfer rate (bit/s, MB/s), download-time, bandwidth, compression-ratio assumptions or storage-pricing calculators, all of which require additional information beyond a single linear factor.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).