Terabytes to Gigabytes Converter
1 terabyte = 1,000 gigabytes.
Enter a value
Result
1 terabyte =
1,000 GB
1 TB × 1,000 = 1,000 GB
Decimal units count in 1,000s; binary units (KiB, MiB, GiB) count in 1,024s
The working
- 1. Convert 1 TB to bytes: 1 × 1e12 = 1e12.
- 2. Convert to GB: 1e12 ÷ 1,000,000,000 = 1,000.
1 TB in every unit
Why a drive shows less than advertised
- A 500 GB drive shows as
- ≈ 465.7 GiB
- MP3 song
- ≈ 4 MB
- Phone photo
- ≈ 3 MB
- HD film
- ≈ 4 GB
Conversion table
Terabytes to Gigabytes
| Terabytes | Gigabytes |
|---|---|
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 8 | 8,000 |
| 10 | 10,000 |
| 16 | 16,000 |
| 20 | 20,000 |
Gigabytes to Terabytes
| Gigabytes | Terabytes |
|---|---|
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 8 | 0.008 |
| 10 | 0.01 |
| 16 | 0.016 |
| 20 | 0.02 |
Formula and worked example
gigabytes = terabytes × 1,000.
Convert 2 terabytes to gigabytes: 2 × 1,000 = 2,000 GB.
When you need this
Converting a hard drive or cloud plan's terabytes into gigabytes for comparing with file sizes.
Questions people ask
How many gigabytes are in a terabyte?
One terabyte is 1,000 gigabytes.
How do I convert terabytes to gigabytes?
Multiply the number of terabytes by 1,000.
What is 5 TB in GB?
5 terabytes is 5,000 gigabytes.
How do I convert gigabytes back to terabytes?
Multiply by 0.001: one gigabyte is 0.001 terabytes.
Related conversions
How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it. Source: NIST Special Publication 811, Guide for the Use of the International System of Units.
Spotted a mistake? Tell us and we'll check it. How we check our calculators