Terabytes to Gigabytes converter
Convert terabytes (TB) to gigabytes (GB) — results update instantly as you type.
Terabytes to Gigabytes
1 TB = 1,000 GB
How to convert Terabytes to Gigabytes
Digital storage is measured in bytes, with each step up multiplying by 1,000 in the SI convention used by storage manufacturers and this converter: 1 KB = 1,000 bytes, 1 MB = 1,000 KB, and so on up to petabytes. One byte always equals 8 bits.
All units convert through the bit. Because a byte is 8 bits, 1 MB equals 8,000,000 bits. Note that operating systems sometimes use binary units (KiB, MiB) where each step is 1,024 instead of 1,000.
Formula
TB × 1,000 = GB
Multiply your terabytes value by 1,000 to get gigabytes. For the reverse, divide by the same factor.
Terabytes to Gigabytes conversion table
| Terabytes | Gigabytes |
|---|---|
| 1 TB | 1,000 GB |
| 2 TB | 2,000 GB |
| 5 TB | 5,000 GB |
| 10 TB | 10,000 GB |
| 25 TB | 25,000 GB |
| 100 TB | 100,000 GB |
Common use cases
- Checking if a file fits on a USB drive or phone
- Comparing cloud storage plans in GB and TB
- Estimating download sizes from bandwidth
- Database and backup capacity planning
Frequently asked questions
In the decimal (SI) convention, 1 GB = 1,000 MB. In the binary convention used by some operating systems, 1 GiB = 1,024 MiB.