Convert Terabytes to Tebibytes
Terabytes (TB) to Tebibytes (TiB) — the formula, a worked example and a live converter, all in your browser.
Terabytes to Tebibytes formula
To convert, multiply by the fixed factor below:
TiB = TB × 0.9094947
This pair crosses the decimal/binary divide: drive makers and networks count in powers of 1,000, while operating systems and RAM count in powers of 1,024 — which is why the factor isn't a clean power of ten.
Worked example
1 TB = 1 × 0.9094947 = 0.9094947 TiB.
Terabytes to Tebibytes conversion table
| Terabytes (TB) | Tebibytes (TiB) |
|---|---|
| 1 | 0.9094947 |
| 5 | 4.5475 |
| 10 | 9.0949 |
| 100 | 90.9495 |
| 500 | 454.75 |
| 1,000 | 909.49 |
Common uses
Explains why a 1 TB drive appears as roughly 0.909 TiB (≈931 GiB) once your operating system counts in powers of 1024.
Related conversions
Need a different pair? Use the full data storage converter for bits, bytes and every unit up to petabytes.
Frequently asked questions
What is the formula to convert terabytes to tebibytes?
Multiply the number of terabytes by 0.9094947 to get tebibytes (TiB = TB × 0.9094947).
How many tebibytes are in a terabyte?
One terabyte equals 0.9094947 tebibytes.
Why do TB and TiB differ at all?
TiB counts in powers of 1024 (binary, used by operating systems and RAM), while TB counts in powers of 1000 (decimal, used by drive makers and networks). Same bytes, two counting systems.