Gigabytes to Terabytes Converter
Convert gigabytes to terabytes and understand the difference between decimal (1000) and binary (1024) storage units.
Result
Terabytes (TB)
1 Gigabytes (GB) = 0.0009765625 Terabytes (TB)
How to convert Gigabytes (GB) to Terabytes (TB)?
Note: Storage conversions are commonly shown using two standards: decimal (SI) and binary (IEC). That’s why GB→TB can look different in different tools.
- Decimal (SI): 1 TB = 1000 GB
- Binary (IEC): 1 TiB = 1024 GiB (often shown as “1024 GB per TB” in some tools)
This converter uses a 1024-based calculation as specified by the factor.
Formula (1024-based): Terabytes (TB) = Gigabytes (GB) ÷ 1024
Step-by-Step Calculation (1024-based)
- Take the number of Gigabytes (GB) you want to convert (e.g., 2048).
- Divide that value by 1024.
- The result is the value in Terabytes (TB). (Example: 2048 ÷ 1024 = 2 TB).
Decimal vs Binary: which one should you use?
Decimal (SI) is common in drive labels and storage plans:
- 1 TB = 1000 GB
- TB = GB ÷ 1000
Binary (IEC) is common in operating systems and some software:
- 1 TiB = 1024 GiB
- TiB = GiB ÷ 1024
Quick tip: If you want a result that matches provider/marketing labels, use 1000-based. If you want a result that matches binary calculations, use 1024-based (GiB→TiB).
Why does 1000 GB not equal 1 TB in some tools?
In decimal terms, 1000 GB = 1 TB. But in a 1024-based calculation, 1000 ÷ 1024 ≈ 0.9766 TB. This is one reason storage can appear “smaller” depending on how a device or app reports units.
Real-world use cases (storage plans, SSD sizes, backups)
- Storage plans: A “2 TB” plan often means 2000 GB in decimal terms.
- SSD sizing: If you have a 512 GB drive, converting to TB helps compare it to multi-terabyte options.
- Backups: Converting large totals (e.g., 3500 GB) to TB helps estimate how many terabytes of backup space you need.
How to use this converter?
Common GB to TB Conversions (1024-based)
Quick reference guide using a 1024-based factor.
Note: 1000 vs 1024
GB to TB Conversion Table (1024-based)
| Gigabytes (GB) Input | Terabytes (TB) Result |
|---|---|
| 256 GB | 0.2500 TB |
| 512 GB | 0.5000 TB |
| 1000 GB | 0.9766 TB |
| 1024 GB | 1.0000 TB |
| 1500 GB | 1.4648 TB |
| 2000 GB | 1.9531 TB |
| 2048 GB | 2.0000 TB |
| 3000 GB | 2.9297 TB |
| 5000 GB | 4.8828 TB |
| 10000 GB | 9.7656 TB |
Frequently Asked Questions
How do I convert GB to TB?
If you mean decimal labeling, divide GB by 1000 to get TB. If you’re using a 1024-based calculation, divide by 1024 (commonly aligned with GiB→TiB).
How many TB is 1000 GB?
In decimal terms, 1000 GB = 1 TB. Using a 1024-based calculation, 1000 ÷ 1024 ≈ 0.9766 TB.
How many TB is 1024 GB?
Using a 1024-based calculation, 1024 GB = 1 TB (more precisely: 1024 GiB = 1 TiB).
Why do some tools use 1000 instead of 1024?
1000 is the decimal (SI) standard used in marketing and many storage plans. 1024 is the binary (IEC) standard (GiB/TiB) often used by operating systems and technical tools.
Is this conversion exact?
It’s exact for the chosen factor. 1024-based conversions are exact in the binary system (GiB→TiB). Decimal labeling commonly uses 1000 (GB→TB).