1 TB to GB
1 TB = 1000 GB
1 terabyte equals 1000 gigabytes.
How to convert 1 TB to GB
Use the formula GB = TB × 1000:
GB = 1 × 1000GB = 1000
So 1 TB = 1000 GB.
Rounded values and quick estimate
- Rounded to a whole number: 1,000 GB
- Rounded to one decimal place: 1,000 GB
- Conversion factor: 1 terabyte = 1000 gigabytes
This conversion is exact, so there is no need to estimate: just multiply by 1,000.
1 TB in other units
- Gigabytes
- 1000 GB
- Kilobytes
- 1000000000 KB
- Megabytes
- 1000000 MB
- Bits
- 8000000000000 bits
- Bytes
- 1000000000000 bytes
1 TB and nearby values
About terabytes and gigabytes
A terabyte is 1,000 gigabytes (one trillion bytes). Hard drives and SSDs are sold in decimal terabytes.
A gigabyte is 1,000 megabytes (one billion bytes) as used by drive and phone makers. Windows reports sizes in gibibytes (1,024³ bytes), which is why a 1 TB drive shows about 931 “GB”.
Related conversions
Frequently asked questions
What is 1 TB in GB?
1 terabyte is 1000 gigabytes (1 TB = 1000 GB).
How do you convert 1 TB to GB?
Apply GB = TB × 1000: GB = 1 × 1000, GB = 1000.
How many terabytes is 1000 GB?
1000 GB is about 1 terabyte.