Petabytes to Terabytes Converter
Convert petabytes to terabytes and understand the difference between decimal (1000) and binary (1024) data units.
Result
Terabytes (TB)
1 Petabytes (PB) = 1024 Terabytes (TB)
How to convert Petabytes (PB) to Terabytes (TB)?
Note: Large storage conversions are commonly shown using two standards: decimal (SI) and binary (IEC).
- Decimal (SI): 1 PB = 1000 TB
- Binary (IEC): 1 PiB = 1024 TiB (often shown as “1024 TB per PB” in some tools)
This converter uses a 1024-based factor as specified in the page settings.
Formula (1024-based): Terabytes (TB) = Petabytes (PB) × 1024
Step-by-Step Calculation (1024-based)
- Take the number of Petabytes (PB) you want to convert (e.g., 2).
- Multiply that value by 1024.
- The result is the value in Terabytes (TB). (Example: 2 × 1024 = 2048 TB).
Decimal vs Binary: which one should you use?
Decimal (SI) is common in storage marketing, contracts, and capacity labels:
- 1 PB = 1000 TB
- TB = PB × 1000
Binary (IEC) is common in system-level reporting and some tools:
- 1 PiB = 1024 TiB
- TiB = PiB × 1024
Quick tip: If you’re comparing provider quotes or drive labels, use 1000-based. If you’re matching binary calculations, use 1024-based (PiB→TiB).
Real-world use cases (data centers, analytics, backups)
- Data center capacity planning: Converting PB to TB helps estimate rack-level or cluster-level storage needs.
- Backup retention: If you store 0.8 PB of backups, that’s 800 TB (decimal) or 819.2 TB in a 1024-based calculation.
- Big data / AI datasets: Many datasets are reported in PB—converting to TB helps forecast storage tiers and migration sizes.
How to use this converter?
Common PB to TB Conversions (1024-based)
Quick reference guide for large storage values using a 1024-based factor.
Note: Decimal vs binary units
PB to TB Conversion Table (1024-based)
| Petabytes (PB) Input | Terabytes (TB) Result |
|---|---|
| 0.25 PB | 256 TB |
| 0.5 PB | 512 TB |
| 1 PB | 1024 TB |
| 1.5 PB | 1536 TB |
| 2 PB | 2048 TB |
| 5 PB | 5120 TB |
| 10 PB | 10240 TB |
| 20 PB | 20480 TB |
| 50 PB | 51200 TB |
| 100 PB | 102400 TB |
Frequently Asked Questions
How do I convert PB to TB?
If you mean decimal labeling, multiply PB by 1000 to get TB. If you’re using a 1024-based calculation, multiply by 1024 (more precisely: PiB→TiB).
How many TB is 1 PB?
In decimal terms, 1 PB = 1000 TB. Using a 1024-based calculation, 1 × 1024 = 1024 TB (more precisely: 1 PiB = 1024 TiB).
How many TB is 10 PB?
In decimal terms, 10 PB = 10000 TB. Using a 1024-based calculation, 10 × 1024 = 10240 TB.
Why do some sources use 1000 instead of 1024?
1000 is the decimal (SI) standard used in labeling and many provider specs. 1024 is the binary (IEC) standard (PiB/TiB).
Is this conversion exact?
It’s exact for the chosen factor. 1024-based conversions are exact in the binary system (PiB→TiB). Decimal labeling commonly uses 1000 (PB→TB).