How to convert gigabytes to gibibytes
To convert a measurement in gigabytes to gibibytes, multiply the value by 0.931322574615. The conversion factor comes from the relationship between both units and the byte.
For example, to convert 5 GB to gibibytes: 5 × 0.931322574615 = 4.656613 GiB.
What is a gigabyte?
A gigabyte is 1,000,000,000 bytes (1,000 megabytes) under the SI decimal convention. The binary equivalent of 1,073,741,824 bytes is the gibibyte (GiB). The gigabyte became the standard consumer storage unit with the rise of hard drives, USB sticks, and smartphones. Drive makers market capacity in decimal gigabytes, while operating systems often report in binary gibibytes, which is why a '500 GB' drive shows as about 465 GB.
Common uses of gigabytes include: Hard drive, SSD, and USB flash storage capacity; Smartphone and tablet storage tiers; HD video and large software installs; RAM and memory-card sizing.
What is a gibibyte?
A gibibyte is exactly 1,073,741,824 bytes (2^30), the binary counterpart of the gigabyte defined by the IEC. This is why a 1 GB figure and a 1 GiB figure differ by about 7%. The gibibyte resolves the most visible storage confusion: drive makers sell in decimal gigabytes while operating systems report in binary gibibytes, so a '500 GB' drive is about 465 GiB of usable, OS-reported space.
Common uses of gibibytes include: Operating-system storage and RAM reporting; Virtual-machine and disk-image sizing; Reconciling advertised vs. reported drive capacity; Exact power-of-two capacity in software.
Gigabytes to gibibytes worked examples
Here are some common values converted:
1 GB = 0.931322574615 GiB 5 GB = 4.656613 GiB 10 GB = 9.313226 GiB 50 GB = 46.566129 GiB 100 GB = 93.132257 GiB
Frequently asked questions
How many gibibytes are in one gigabyte?
One gigabyte (GB) equals 0.931322574615 gibibytes (GiB). Multiply any value in gigabytes by 0.931322574615 to convert to gibibytes.
How do I convert gigabytes to gibibytes?
Multiply the value in gigabytes by 0.931322574615. For example, 5 GB × 0.931322574615 = 4.656613 GiB.
How do I convert gibibytes to gigabytes?
Multiply the value in gibibytes by 1.073742, or divide by 0.931322574615. Use the swap button on the converter above to reverse the direction.
Is the gigabyte to gibibyte conversion exact?
Decimal units (KB, MB, GB) use powers of 1000 per SI; binary units (KiB, MiB, GiB) use powers of 1024 per IEC. Both are exact — just be sure you are using the right family, since storage is often sold in decimal but reported by operating systems in binary.
What is the formula for gigabytes to gibibytes?
The formula is: GiB = GB × 0.931322574615. This comes from the definition of both units relative to the byte.