Conversion result
Calculator inputs
Complete storage conversion table
The table updates with your current value. Binary labels follow IEC naming conventions.
| Storage unit | Converted value |
|---|---|
| Enter a valid value to build the table. | |
Formula used
How to use this calculator
- Enter the storage amount you want to convert.
- Select TB to GB or the reverse direction.
- Choose decimal SI or binary IEC measurement.
- Select your preferred number of decimal places.
- Review the instant result and conversion table.
- Copy, print, share, or download the result.
Step-by-step explanation
Decimal storage uses powers of one thousand. Manufacturers commonly advertise drives with this standard. One terabyte therefore contains exactly one thousand gigabytes.
Binary storage uses powers of one thousand twenty-four. IEC labels are TiB and GiB. One tebibyte therefore contains exactly 1,024 gibibytes total.
Reverse conversion divides instead of multiplying. The selected standard determines the divisor. Precision controls only change the displayed rounded result value.
Common conversion examples
| Terabytes | Decimal gigabytes | Binary gibibytes |
|---|---|---|
| 0.5 | 500 GB | 512 GiB |
| 1 | 1,000 GB | 1,024 GiB |
| 2 | 2,000 GB | 2,048 GiB |
| 5 | 5,000 GB | 5,120 GiB |
| 10 | 10,000 GB | 10,240 GiB |
Frequently asked questions
How many gigabytes are in one terabyte?
One decimal terabyte contains 1,000 gigabytes. This standard uses powers of one thousand. Drive manufacturers commonly report capacity using this method.
Why does binary conversion use 1,024?
Binary computing uses powers of two. The correct IEC units are TiB and GiB. One TiB equals exactly 1,024 GiB in practice.
Are TB and TiB identical?
No, they represent different unit standards. TB uses a decimal factor of 1,000. TiB uses a binary factor of 1,024 instead.
Can this calculator convert GB back to TB?
Yes, select the reverse conversion direction. The calculator divides by your selected factor. Results update immediately after any input change occurs.
Can I enter decimal terabyte values?
Yes, decimal inputs are fully supported. Values like 0.5 and 2.75 work. Commas are also accepted in larger numbers safely.
Why does my operating system show less storage?
Some systems report capacity using binary calculations. Manufacturers often advertise using decimal calculations instead. Formatting and recovery partitions also reduce visible space.
Does rounding change the actual conversion?
No, rounding only changes displayed digits. The calculator keeps a fuller internal result. You can view full precision beside the answer.
Can very large values be converted?
Yes, the calculator accepts large numeric values. Scientific notation appears for extremely large results. Browser limits still apply to unusual magnitudes entered.
What does removing trailing zeros do?
It simplifies the displayed number only. For example, 2.500 becomes 2.5. The mathematical result remains exactly the same value.
Can I download the result?
Yes, CSV and PDF downloads are available. The buttons use your current calculator settings. Printing and copying are also supported directly here.
Which conversion standard should I choose?
Choose decimal for advertised storage capacities. Choose binary for IEC-based computing measurements. Always match the standard used by your source.