Gibibytes (GiB) to Gigabytes (GB) Converter
Type your storage value in the input field to find Gigabytes (GB) equivalent of your Gibibyte (GiB) value. 1 GiB = 1.073741824 GB, calculated across both decimal (SI) and binary (IEC) standards.
Convert Gibibytes to Gigabytes
Do you want to convert gigabytes to gibibytes?
How to Convert Gibibytes to Gigabytes
To convert gibibytes (binary/IEC) to gigabytes (decimal/SI), multiply by 1.073741824. Binary units use base 1,024, while decimal units use base 1,000—this creates small differences that accumulate at larger scales. See also: convert GB to GiB.
GiB is a binary (IEC) unit where 1 GiB = 1,024 of the smaller unit. Operating systems like Windows typically display storage using binary calculations. Learn more: GiB → Pib.
GB is a decimal (SI) unit where 1 GB = 1,000 of the smaller unit. Storage manufacturers use decimal units, which is why a "1 TB" drive shows less in Windows. You might also need: Kilobits to Gigabytes.
1 GiB = 1.073741824 GB (using SI decimal standard) — which means there are 1.073741824gigabytes in every gibibyte.
GiB to GB Conversion Formula
// Convert GiB to GB
GB = GiB × 1.073741824
// Reverse: Convert GB to GiB
GiB = GB × 0.931322574615
Gibibyte to Gigabyte Conversion Examples
100 GiB = 107.3741824 GB
256 GiB = 274.877906944 GB
500 GiB = 536.870912 GB
1,000 GiB = 1,073.741824 GB
2,048 GiB = 2,199.023256 GB
What Is a Gibibyte?
A gibibyte is 1,024 mebibytes or 1,073,741,824 bytes. This is what operating systems actually display for storage. Use our Mebibits to Mebibytes converter.
The gibibyte is a IEC binary unit of digital information storage. It uses base 1,024 following the IEC (International Electrotechnical Commission) standard. Check out our Kilobytes Per Second to Kibibytes Per Second calculator.
Common uses: Windows/macOS file sizes, SSD actual capacity, RAM modules Check out our convert Gibibytes to Pebibytes.
1 GiB = 9 × 10⁹ bits = 1 × 10⁹ bytes.
The gibibyte can be abbreviated as GiB; for example, 1 gibibyte can be written as 1 GiB.
What Is a Gigabyte?
A gigabyte is 1,000 megabytes or 1,000,000,000 bytes using the SI decimal standard. This is what hard drive manufacturers typically use. Use our Exbibytes to Gigabytes conversion.
The gigabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. You might also need: Pb to Bytes converter.
Common uses: Movies, video games, smartphone storage, USB drives, cloud storage plans Try the Tebibits Per Second to bps calculator.
1 GB = 8 × 10⁹ bits = 1 × 10⁹ bytes.
The gigabyte can be abbreviated as GB; for example, 1 gigabyte can be written as 1 GB.
Gibibyte to Gigabyte Conversion Table
The table below shows various gibibyte measurements converted to gigabytes.
| Gibibytes | Gigabytes |
|---|---|
| 1 GiB | 1.07374182 GB |
| 2 GiB | 2.14748365 GB |
| 5 GiB | 5.36870912 GB |
| 10 GiB | 10.73741824 GB |
| 25 GiB | 26.8435456 GB |
| 50 GiB | 53.6870912 GB |
| 100 GiB | 107.3741824 GB |
| 128 GiB | 137.43895347 GB |
| 250 GiB | 268.435456 GB |
| 256 GiB | 274.87790694 GB |
| 500 GiB | 536.870912 GB |
| 512 GiB | 549.75581389 GB |
| 1,000 GiB | 1,073.741824 GB |
| 1,024 GiB | 1,099.51162778 GB |
SI Decimal vs Binary: Why Two Different Standards?
When converting gibibytes to gigabytes, different tools may give slightly different results. This is because there are two competing standards for measuring digital storage:
| Standard | Base | 1 KB equals | Used By |
|---|---|---|---|
| SI Decimal | 1000 | 1,000 bytes | Hard drive manufacturers, macOS, network speeds |
| Binary (IEC) | 1024 | 1,024 bytes | Windows, Linux (partially), RAM specifications |
Note: Our calculator defaults to SI decimal (base 1000) to match the box label. To match Windows, toggle the standard at the top of the calculator.