Terabyte to Gigabyte Converter
One Terabyte equals 1024 Gigabyte (1 TB = 1024 GB). Multiply a Terabyte value by 1024 to get the equivalent in Gigabyte. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.
Formula
GB = TB × 1024
Multiply the Terabyte value by 1024 to get the equivalent value in Gigabyte.
Example Conversions
1 Terabyte (TB)
1024 Gigabyte (GB)
5 Terabyte (TB)
5120 Gigabyte (GB)
10 Terabyte (TB)
10240 Gigabyte (GB)
25 Terabyte (TB)
25600 Gigabyte (GB)
100 Terabyte (TB)
102400 Gigabyte (GB)
Conversion Table
| Terabyte (TB) | Gigabyte (GB) |
|---|---|
| 0.1 | 102.4 |
| 0.5 | 512 |
| 1 | 1024 |
| 2 | 2048 |
| 5 | 5120 |
| 10 | 10240 |
| 25 | 25600 |
| 50 | 51200 |
| 100 | 102400 |
| 250 | 256000 |
| 500 | 512000 |
| 1000 | 1024000 |
How to Convert Manually
Use these steps to convert Terabyte values to Gigabyte without the calculator.
- Write down the value in Terabyte (TB) that you want to convert.
- Multiply that value by 1024.
- For example, 10 Terabyte × 1024 = 10240 Gigabyte.
- Label the result as Gigabyte (GB).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Terabyte and one Gigabyte.
About Terabyte and Gigabyte
The terabyte here is 1,024 gigabytes, about a trillion bytes. Hard drives, backup systems, and media libraries are terabyte-scale. The gigabyte here is 1,024 megabytes, about a billion bytes. RAM, phone storage, and mobile data plans are sold in gigabytes. One Terabyte equals 1024 Gigabyte (1 TB = 1024 GB). Terabyte to Gigabyte conversion comes up most often in hard drive and SSD capacity and in backup and archive storage, typically when figures need restating for phone and laptop storage.
Precision and Rounding: This converter uses the binary convention (1 KB = 1,024 bytes), which matches how operating systems report file and memory sizes. Storage manufacturers label drives with decimal units (1 GB = 1,000,000,000 bytes), which is why a '1 TB' drive shows roughly 931 GB in your OS — check which convention your source uses.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15 Terabyte equals 15360 Gigabyte.
15 TB × 1024 = 15360 GB
FAQ
How do I convert Terabyte to Gigabyte?
Multiply the Terabyte value by 1024 to get the equivalent value in Gigabyte.
What is the formula for Terabyte to Gigabyte?
The formula is GB = TB × 1024.
How many Gigabyte are in 1 Terabyte?
1 Terabyte equals 1024 Gigabyte.
Can I convert Gigabyte back to Terabyte?
Yes. 1 Gigabyte equals 0.0009765625 Terabyte, and the related converter can reverse the calculation.
What are common names for Terabyte and Gigabyte?
Terabyte is shown as TB and may also be searched as terabytes, tb. Gigabyte is shown as GB and may also be searched as gigabytes, gb.
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