Terabyte to Gigabyte Converter
Converts terabyte to gigabyte (TB to GB) and back. The conversion factor is shown below every result.
How to Convert Terabyte to Gigabyte
What Is a Terabyte?
A terabyte (TB), by the SI prefix standard, is 1,000,000,000,000 bytes (1,000 GB).
What Is a Gigabyte?
A gigabyte (GB), by the SI prefix standard, is 1,000,000,000 bytes.
Common Terabyte to Gigabyte Reference Points
Real-world reference values for quick sanity checks.
| Item | Terabyte (TB) | Gigabyte (approx.) |
|---|---|---|
| A typical laptop SSD | 1 TB | 1,000 GB |
| A small NAS drive | 4 TB | 4,000 GB |
| Reference values are illustrative approximations for common items, not measured specifications. | ||
Terabyte to Gigabyte Conversion Table
| Terabyte (TB) | Gigabyte (GB) |
|---|---|
| 0.5 TB | 500 GB |
| 1 TB | 1000 GB |
| 2 TB | 2000 GB |
| 4 TB | 4000 GB |
| 8 TB | 8000 GB |
| 10 TB | 10000 GB |
| 16 TB | 16000 GB |
| Source: NIST SI prefix guidance; IEC 60027-2 | |
Frequently Asked Questions
How do I convert terabytes to gigabytes?
Multiply the terabyte value by 1,000. For example, 2 TB × 1,000 = 2,000 GB.
Is a terabyte always 1,000 gigabytes?
Under the SI decimal standard used on this page, yes. Some software reports storage using 1,024-based binary math instead, which would show a smaller number under the same "GB" label; that binary value is more precisely called a tebibyte-to-gibibyte relationship (1 TiB = 1,024 GiB).
How many megabytes are in a terabyte?
1,000,000 MB, following the same decimal chain (1 TB = 1,000 GB = 1,000,000 MB).
Related Data Storage Converters
A good measuring tool marked in both TB and GB removes the guesswork at the point of use.