How to convert gigabytes to terabytes
Formula: TB = GB × 0.001
Worked example: 256 GB → 256 × 0.001 = 0.256 TB
Divide gigabytes by 1,000 to get terabytes. A phone with 256 GB of storage holds about a quarter of a terabyte.
Gigabytes to terabytes conversion chart
| Gigabytes (GB) | Terabytes (TB) |
|---|---|
| 1 GB | 0.001 TB |
| 2 GB | 0.002 TB |
| 3 GB | 0.003 TB |
| 4 GB | 0.004 TB |
| 5 GB | 0.005 TB |
| 8 GB | 0.008 TB |
| 10 GB | 0.01 TB |
| 16 GB | 0.016 TB |
| 20 GB | 0.02 TB |
| 25 GB | 0.025 TB |
| 32 GB | 0.032 TB |
| 50 GB | 0.05 TB |
| 64 GB | 0.064 TB |
| 100 GB | 0.1 TB |
| 128 GB | 0.128 TB |
| 250 GB | 0.25 TB |
| 256 GB | 0.256 TB |
| 500 GB | 0.5 TB |
| 512 GB | 0.512 TB |
| 1,000 GB | 1 TB |
| 1,024 GB | 1.024 TB |
What is a gigabyte?
The gigabyte is one billion bytes, the usual unit for phone storage, RAM and mobile data plans. An hour of HD streaming video uses roughly 1.5 to 3 GB depending on the service and quality.
What is a terabyte?
The terabyte is one trillion bytes, or 1,000 GB. Hard drives, SSDs and cloud backups are sold in TB. A 1 TB drive holds about 250,000 photos of 4 MB.