TB to GB Converter
1 terabyte = 1,000 gigabytes
Type a value in either box: the conversion between terabytes (TB) and gigabytes (GB) updates instantly.
Good to know
A 2 TB drive holds 2,000 GB. When planning backups, keep some free space for the file system and future files.
How to convert terabytes to gigabytes
To convert terabytes to gigabytes, multiply the number of terabytes by 1,000. To go the other way, multiply gigabytes by 0.001.
GB = TB × 1,000
Worked examples
- 1 TB = 1,000 GB
- 2 TB = 2,000 GB
- 4 TB = 4,000 GB
- 8 TB = 8,000 GB
TB to GB conversion table
| TB (TB) | GB (GB) |
|---|---|
| 1 TB | 1,000 GB |
| 2 TB | 2,000 GB |
| 3 TB | 3,000 GB |
| 4 TB | 4,000 GB |
| 5 TB | 5,000 GB |
| 6 TB | 6,000 GB |
| 7 TB | 7,000 GB |
| 8 TB | 8,000 GB |
| 9 TB | 9,000 GB |
| 10 TB | 10,000 GB |
| 15 TB | 15,000 GB |
| 20 TB | 20,000 GB |
| 25 TB | 25,000 GB |
| 30 TB | 30,000 GB |
| 40 TB | 40,000 GB |
| 50 TB | 50,000 GB |
| 75 TB | 75,000 GB |
| 100 TB | 100,000 GB |
| 250 TB | 250,000 GB |
| 500 TB | 500,000 GB |
| 1,000 TB | 1,000,000 GB |
About the units
TB (TB)
A terabyte (TB) is 1,000 GB, or one trillion bytes. Hard drives and SSDs are sold in decimal terabytes.
GB (GB)
A gigabyte (GB) is 1,000,000,000 bytes, or 1,000 MB, in decimal units. Windows reports binary gibibytes (GiB, 1,073,741,824 bytes) but labels them GB.
Frequently asked questions
How do I convert terabytes to gigabytes?
GB = TB × 1,000What is 2 TB in gigabytes?
How many gigabytes are in a terabyte?
How many terabytes are in a gigabyte?
Conversion factors use exact international definitions where they exist (for example 1 inch = 2.54 cm and 1 lb = 0.45359237 kg). Results are rounded for display only.