GB to TiB Converter
Convert gigabytes to tebibytes — decimal to binary at the terabyte scale. Results update as you type; exact factors shown.
One gigabyte (10⁹) is 0.0009 tebibyte (2⁴⁰) — see the exact factor, not a rounded rule of thumb.
How the gb to tib converter works
Storage converts through the byte (8 bits). Drive makers and network speeds use decimal prefixes (1 GB = 10⁹ bytes); operating systems often report binary units (1 GiB = 2³⁰ = 1,073,741,824 bytes) — sometimes labelled "GB". The gap is 7.4% at the gigabyte and 10% at the terabyte.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common data conversions
| From | To | Units |
|---|---|---|
| 100 GB | 0.0909 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 250 GB | 0.2274 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 500 GB | 0.4547 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 1,000 GB | 0.9095 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 1,024 GB | 0.9313 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 2,000 GB | 1.819 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 4,000 GB | 3.638 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 8,000 GB | 7.276 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 10,000 GB | 9.0949 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 16,000 GB | 14.5519 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 20,000 GB | 18.1899 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
| 100,000 GB | 90.9495 TiB | gigabyte (10⁹) to tebibyte (2⁴⁰) |
Units in this converter and their exact factors
| Unit | Symbol | One unit in bytes |
|---|---|---|
| bit | bit | 0.125 byte |
| byte | B | 1 byte |
| kilobyte (10³) | kB | 1,000 byte |
| megabyte (10⁶) | MB | 1,000,000 byte |
| gigabyte (10⁹) | GB | 1,000,000,000 byte |
| terabyte (10¹²) | TB | 1,000,000,000,000 byte |
| kibibyte (2¹⁰) | KiB | 1,024 byte |
| mebibyte (2²⁰) | MiB | 1,048,576 byte |
| gibibyte (2³⁰) | GiB | 1,073,741,824 byte |
| tebibyte (2⁴⁰) | TiB | 1,099,511,627,776 byte |
FAQFrequently asked questions about data conversion
How many GB in a TiB?
1,099.5 GB.
Why does my 4 TB array show as 3.64 TiB?
Because the maker counts decimal terabytes and the operating system reports binary tebibytes. Both numbers are correct.
What is 1,000 GB in TiB?
0.909 TiB.
How big is the gap?
About 9.95% at this scale, and it grows with each prefix step.
Which should I plan capacity in?
Whichever your tooling reports — but say which, because the two differ by a tenth.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.