EXACT CONVERSION FORMULA
Gigabytes (GB) = Terabytes (TB) × 1024
1 TB equals 1,024 GB (binary). Hard drive manufacturers use decimal: 1 TB = 1,000 GB.
Terabytes to Gigabytes Conversion Table
Quick reference lookup table for converting common values from terabytes to gigabytes:
| Terabytes (TB) | Gigabytes (GB) |
|---|---|
| 0.25 TB | 255.999621 GB |
| 0.5 TB | 511.999242 GB |
| 1 TB | 1023.998484 GB |
| 2 TB | 2047.996968 GB |
| 4 TB | 4095.993936 GB |
| 5 TB | 5119.99242 GB |
| 8 TB | 8191.987872 GB |
| 10 TB | 10239.98484 GB |
| 16 TB | 16383.97574 GB |
| 20 TB | 20479.96968 GB |
Practical Examples
1 TB = 1024 GB
Standard hard drive
2 TB = 2048 GB
Large external drive
Frequently Asked Questions
Why does my 1 TB drive show less than 1000 GB?
Drive manufacturers use decimal (1 TB = 1,000 GB), but operating systems use binary (1 TB = 1,024 GB). A 1 TB drive shows ~931 GB in your OS.