How to Convert Terabytes to Tebibytes (TB to TiB)
Data conversions explain why a 1 TB drive shows less space on your computer and help compare mobile plans sold in gigabytes. This guide shows how to convert terabytes into tebibytes by hand, with examples and a quick-reference table.
The conversion
To convert terabytes to tebibytes, multiply the value by 0.9094947018. To go the other way, divide by the same number (or multiply by 1.0995116278). For a quick estimate, multiply by about 0.91.
Tebibytes = terabytes × 0.9094947018
Worked examples
- 3 TB = 2.7285 TiB
- 12.5 TB = 11.3687 TiB
- 75 TB = 68.2121 TiB
Terabytes to Tebibytes table
| Terabytes | Tebibytes |
|---|---|
| 1 TB | 0.909495 TiB |
| 2 TB | 1.819 TiB |
| 5 TB | 4.5475 TiB |
| 10 TB | 9.0949 TiB |
| 20 TB | 18.1899 TiB |
| 25 TB | 22.7374 TiB |
| 50 TB | 45.4747 TiB |
| 100 TB | 90.9495 TiB |
| 250 TB | 227.3737 TiB |
| 500 TB | 454.7474 TiB |
| 1,000 TB | 909.4947 TiB |
Common questions
Is TB to TiB exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Tebibytes to Terabytes converter.
Mistakes to avoid
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Background
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
For any value, use the Terabytes to Tebibytes Converter or browse all data storage converters.
Run your own numbers: Terabytes to Tebibytes Converter