How to convert gigabytes to gibibytes
To convert gigabytes (GB) to gibibytes (GiB), multiply the value in gigabytes by 0.931322574615.
GiB = GB × 0.931322574615 (decimal)
GiB = GB × 1 (binary)
Example: 5 GB = 4.656612873 GiB, or 5 GiB in binary.
Decimal (SI) counting steps by 1,000 and is what drive makers, macOS and phones use. Binary counting steps by 1,024 and is what Windows and RAM use; its unambiguous IEC names are KiB, MiB and GiB. Bits are decimal either way.
You can also type 5 GB to GiB into the smart calculator, or mix units: 1 GB + 1 GiB.
Gigabytes to Gibibytes conversion table
| Gigabytes | Gibibytes (decimal) | Gibibytes (binary) |
|---|---|---|
| 0.01 GB | 0.0093132257 GiB | 0.01 GiB |
| 0.1 GB | 0.093132257 GiB | 0.1 GiB |
| 0.25 GB | 0.23283064 GiB | 0.25 GiB |
| 0.5 GB | 0.46566129 GiB | 0.5 GiB |
| 1 GB | 0.93132257 GiB | 1 GiB |
| 2 GB | 1.8626451 GiB | 2 GiB |
| 3 GB | 2.7939677 GiB | 3 GiB |
| 4 GB | 3.7252903 GiB | 4 GiB |
| 5 GB | 4.6566129 GiB | 5 GiB |
| 6 GB | 5.5879354 GiB | 6 GiB |
| 7 GB | 6.519258 GiB | 7 GiB |
| 8 GB | 7.4505806 GiB | 8 GiB |
| 9 GB | 8.3819032 GiB | 9 GiB |
| 10 GB | 9.3132257 GiB | 10 GiB |
| 12 GB | 11.175871 GiB | 12 GiB |
| 15 GB | 13.969839 GiB | 15 GiB |
| 20 GB | 18.626451 GiB | 20 GiB |
| 25 GB | 23.283064 GiB | 25 GiB |
| 30 GB | 27.939677 GiB | 30 GiB |
| 40 GB | 37.252903 GiB | 40 GiB |
| 50 GB | 46.566129 GiB | 50 GiB |
| 60 GB | 55.879354 GiB | 60 GiB |
| 75 GB | 69.849193 GiB | 75 GiB |
| 100 GB | 93.132257 GiB | 100 GiB |
| 250 GB | 232.83064 GiB | 250 GiB |
| 500 GB | 465.66129 GiB | 500 GiB |
| 1,000 GB | 931.32257 GiB | 1,000 GiB |
Converting gibibytes back to gigabytes
1 GiB = 1.073741824 GB. See the Gibibytes to Gigabytes converter, or press the swap button above.
About the units
Gigabyte (GB)
In decimal mode 1,000,000,000 bytes (1,000 MB); in binary mode 1,073,741,824 bytes (1,024 MB).
Gibibyte (GiB)
Exactly 1,073,741,824 bytes, or 1,024 MiB. What Windows displays as GB.
Digital storage is counted in bits and bytes (1 byte = 8 bits). There are two ways to count bytes. Decimal (SI) prefixes step by 1,000: 1 KB = 1,000 B and 1 GB = 1,000 MB, which is how drive makers, macOS, iOS and Android report sizes. Binary prefixes step by 1,024: 1 KB = 1,024 B and 1 GB = 1,024 MB, which is how Windows and RAM count (the IEC names for these are KiB, MiB and GiB). Bits are always decimal: 1 Kb = 1,000 b.
Questions and answers
How many gibibytes are in a gigabyte?
One gigabyte (GB) equals 0.9313225746 gibibytes in decimal (SI) counting, or 1 gibibytes in binary counting (1 KB = 1,024 B), which Windows uses.
How do I convert gigabytes to gibibytes?
To convert gigabytes to gibibytes, multiply the value in gigabytes by 0.931322574615. The formula is GiB = GB × 0.931322574615. For example, 5 GB = 4.6566129 GiB.
What is 5 GB in GiB?
5 gigabytes is 4.656612873 gibibytes.
Which is bigger, a gigabyte or a gibibyte?
A gibibyte is bigger: 1 GiB = 1.073741824 GB.
Is 1 GB equal to 1,000 MB or 1,024 MB?
Both are in use. In decimal (SI) counting, which drive makers, macOS, iOS and Android use, 1 GB = 1,000 MB. In binary counting, which Windows and RAM use, 1 GB = 1,024 MB; the unambiguous IEC name for that size is the gibibyte (GiB). ConvertEasy has a Decimal / Binary switch so KB, MB, GB and TB follow whichever you need, while KiB, MiB and GiB are always binary.
Are kilobits 1,000 or 1,024 bits?
ConvertEasy treats bits as decimal in both modes: 1 Kb = 1,000 b, 1 Mb = 1,000 Kb. A byte is always 8 bits, so only byte units (KB, MB, GB…) change with the switch.
Does this GB to GiB converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.