Terabyte (TB) to Gigabyte (GB) Converter
Enter a value to instantly convert between data storage units.
1 Terabyte = 1000 Gigabyte
Key Formulas
Megabyte → Gigabyte
GB = MB × 0.001Gigabyte → Megabyte
MB = GB × 1000Gigabyte → Terabyte
TB = GB × 0.001Terabyte → Gigabyte
GB = TB × 1000Formula
GB = TB × (1e+12 / 1000000000)One terabyte is 1,000 gigabytes in decimal units, so multiply terabytes by 1,000. A 2 TB drive holds 2,000 GB. Use this pair to see how many games, videos, or backups fit on a drive, since file sizes appear in gigabytes and drive capacities in terabytes. A tebibyte (TiB) holds 1,024 GiB, so a capacity reported in TiB is a smaller number than the decimal label on the box.
Source: NIST: decimal prefixes and explicit binary prefixes; 1 byte = 8 bits
Reviewed by the Convert Calc editorial team · Last reviewed: · see our methodology
Frequently Asked Questions
Real-World Examples
A 1 TB external drive holds 1000 GB of files.
1 TB = 1000 GB
A 2 TB backup drive offers 2000 GB for laptop backups.
2 TB = 2000 GB
A 0.5 TB SSD is rated at 500 GB of storage.
0.5 TB = 500 GB
A 100 TB storage array is rated at 100000 GB.
100 TB = 100000 GB