Convert Petabytes to Terabytes (PB to TB)
1 petabyte (PB) = 1000 terabytes (TB). 1 TB = 0.001 PB. Example: 15 PB = 15 × 1000 = 15000 TB.
Also searched as petabytes to TB, petabytes in TB, petabytes into terabytes, PB to TB, PB in terabytes, PB into terabyte, petabyte to terabyte, PB to terabytes converter and how many terabytes in a petabyte.
1 PB = 1000 TB
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk petabyte to terabyte converter to paste a column from Excel.
How to Convert Petabyte to Terabyte
- 1 PB = 1000 TB
- 1 TB = 0.001 PB
- Example: convert 15 PB to TB: 15 PB = 15 × 1000 TB = 15000 TB
Formula
TB = PB × 1000
Derivation from SI units:
- 1 PB = 10¹⁵ bytes = 1000 TB.
- 1 TB = 10¹² bytes = 1000 GB.
- 1 PB = 8 × 10¹⁵ bit ÷ 8000000000000 bit per TB = 1000 TB
Both units are defined exactly, so the factor is exact. Petabyte definition: petabyte; Terabyte definition: terabyte.
Worked examples
- A reading of 1 PB converts to 1000 TB.
1 PB × 1000 = 1000 TB - A value of 10 PB is 10000 TB.
10 PB × 1000 = 10000 TB
Petabyte to Terabyte conversion table
| Petabytes (PB) | Terabytes (TB) |
|---|---|
| 0.1 PB | 100 TB |
| 0.5 PB | 500 TB |
| 1 PB | 1000 TB |
| 2 PB | 2000 TB |
| 5 PB | 5000 TB |
| 10 PB | 10000 TB |
| 50 PB | 50000 TB |
| 100 PB | 100000 TB |
Where it's used
Petabytes are used for data centres and cloud providers, while terabytes appear in hard drives and SSDs. Both measure amount of digital information, so the conversion is a fixed factor.
Petabyte to other data storage units
| Conversion | 1 PB equals |
|---|---|
| petabyte to terabyte | 1000 TB |
| petabyte to byte | 1 × 10¹⁵ B |
| petabyte to kilobyte | 1000000000000 kB |
| petabyte to megabyte | 1000000000 MB |
| petabyte to gigabyte | 1000000 GB |
| petabyte to bit | 8 × 10¹⁵ bit |
| petabyte to megabit | 8000000000 Mbit |
| petabyte to kibibyte | 976562500000 KiB |
Show 5 more units
| petabyte to mebibyte | 953674316.4 MiB |
|---|---|
| petabyte to gibibyte | 931322.5746 GiB |
| petabyte to kilobit | 8000000000000 kbit |
| petabyte to gigabit | 8000000 Gbit |
| petabyte to tebibyte | 909.4947018 TiB |
Frequently asked questions
How many terabytes are in 1 petabyte?
1 PB = 1000 TB.
How do I convert petabytes to terabytes?
Multiply the value in PB by 1000. For example, 15 PB × 1000 = 15000 TB.
Is the PB to TB conversion exact?
Yes. Both units are defined exactly, and 1 PB is exactly 1000 TB.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Petabytes to Terabytes (PB to TB). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/petabytes-to-terabytes/
IEEE
Scientific Converters, "Convert Petabytes to Terabytes (PB to TB)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/petabytes-to-terabytes/