TB to GB Converter
Type a value in terabytes to see it in gigabytes as you type, with the exact formula and a reference chart.
- Free
- No sign-up
- Private
- Binary (1,024-based)
- 2,048 GiB
How this was calculated
- 1 terabyte = 1,000 gigabytes
- 2 × 1,000 = 2,000 GB
| TB | GB |
|---|---|
| 0.1 TB | 100 GB |
| 0.25 TB | 250 GB |
| 0.5 TB | 500 GB |
| 0.75 TB | 750 GB |
| 1 TB | 1,000 GB |
| 1.5 TB | 1,500 GB |
| 2 TB | 2,000 GB |
| 2.5 TB | 2,500 GB |
| 3 TB | 3,000 GB |
| 4 TB | 4,000 GB |
| 5 TB | 5,000 GB |
| 6 TB | 6,000 GB |
| 8 TB | 8,000 GB |
| 10 TB | 10,000 GB |
| 12 TB | 12,000 GB |
| 16 TB | 16,000 GB |
| 20 TB | 20,000 GB |
| 24 TB | 24,000 GB |
| 32 TB | 32,000 GB |
| 50 TB | 50,000 GB |
| 100 TB | 100,000 GB |
| GB | TB |
|---|---|
| 1 GB | 0.001 TB |
| 10 GB | 0.01 TB |
| 50 GB | 0.05 TB |
| 100 GB | 0.1 TB |
| 120 GB | 0.12 TB |
| 128 GB | 0.128 TB |
| 200 GB | 0.2 TB |
| 240 GB | 0.24 TB |
| 250 GB | 0.25 TB |
| 256 GB | 0.256 TB |
| 300 GB | 0.3 TB |
| 400 GB | 0.4 TB |
How to convert terabytes to gigabytes
1 terabyte = 1,000 gigabytes. To convert terabytes to gigabytes, multiply by 1,000. A terabyte is 1,000 gigabytes under the SI definition (a tebibyte, TiB, is 1,024 GiB). A gigabyte is 1,000,000,000 bytes under the SI definition (a gibibyte, GiB, is 1,073,741,824 bytes).
Worked examples
- 1 terabyte = 1,000 GB (1 × 1,000)
- 2 terabytes = 2,000 GB (2 × 1,000)
- 8 terabytes = 8,000 GB (8 × 1,000)
Where this conversion comes up
Terabytes are used for hard drives, SSDs and cloud backups; gigabytes for phone storage, RAM, games and mobile data plans. One terabyte is 1,000 GB (SI) or 1,024 GiB in binary. A 2 TB drive holds 2,000 GB, about 500,000 photos at 4 MB each, but shows as 1,863 GB in Windows.
Quick estimate
Multiply by 1,000 (binary: by 1,024).
Common mistakes
- Dividing instead of multiplying. A gigabyte is smaller than a terabyte, so the number of gigabytes must come out larger: 1 terabyte = 1,000 GB.
- Mixing decimal and binary units. Drive makers and this page use 1,000-based (SI) units; Windows reports 1,024-based sizes, which is why a 1 TB drive shows as 931 GB. The result box shows both.
Going the other way? Use the gb to tb converter. Related data converters: kb to mb, mb to kb, mb to gb, gb to mb.
Frequently asked questions
How do you convert terabytes to gigabytes?
Multiply the terabytes by 1,000. For example, 2 terabytes is 2,000 gigabytes.
How many gigabytes are in one terabyte?
One terabyte is 1,000 gigabytes. A terabyte is 1,000 gigabytes under the SI definition (a tebibyte, TiB, is 1,024 GiB).
What is 8 terabytes in gigabytes?
8 terabytes is 8,000 gigabytes.
Is there a quick way to estimate terabytes to gigabytes?
Multiply by 1,000 (binary: by 1,024).