Gibibytes to Gigabytes Converter
1 gibibyte (GiB) equals 1.073741824 gigabytes (GB).
Quick answer
To convert GiB to GB, multiply by 1.073742: 16 GiB = 17.18 GB.
- 1 gibibyte = 1.073741824 gigabytes
- 1 gigabyte = 0.9313225746 gibibytes
- Formula: GB = GiB × 1.073741824
- Quick estimate: add 7.4%.
1 gibibyte = 1.073741824 gigabytes
How to convert gibibytes to gigabytes
GB = GiB × 1.073741824
To convert gibibytes to gigabytes, multiply the number of gibibytes by 1.073741824.
Example: 18 GiB to GB
- Start with the value in gibibytes: 18 GiB.
- Multiply by 1.073741824: 18 × 1.073741824 = 19.32735283.
- Result: 18 gibibytes = 19.32735283 gigabytes.
Going the other way, 1 gigabyte = 0.931322574615 gibibytes, so to convert gigabytes back to gibibytes you divide by the same number. See gigabytes to gibibytes.
Where the conversion factor comes from
A gigabyte (GB) is 10⁹ bytes, the definition used by drive makers, networks and macOS. A gibibyte (GiB) is 2³⁰ = 1,073,741,824 bytes, which Windows shows but labels "GB". So 1 GB = 0.9313 GiB and 1 GiB = 1.0737 GB.
Mental math: GiB to GB in your head
Add about 7.4%.
When you need to convert gibibytes to gigabytes
- RAM sizes (usually powers of 2).
- Cloud and VM pricing.
Common mistakes
- Mixing both units in one calculation.
Everyday gibibytes in gigabytes
| Example | Gibibytes | Gigabytes |
|---|---|---|
| RAM | 8 GiB | 8.5899 GB |
| RAM | 16 GiB | 17.18 GB |
| RAM | 32 GiB | 34.36 GB |
Gibibytes to gigabytes conversion table
| Gibibytes (GiB) | Gigabytes (GB) |
|---|---|
| 0.25 GiB | 0.268435456 GB |
| 0.5 GiB | 0.536870912 GB |
| 0.75 GiB | 0.805306368 GB |
| 1 GiB | 1.073741824 GB |
| 1.5 GiB | 1.610612736 GB |
| 2 GiB | 2.147483648 GB |
| 2.5 GiB | 2.68435456 GB |
| 3 GiB | 3.221225472 GB |
| 4 GiB | 4.294967296 GB |
| 5 GiB | 5.36870912 GB |
| 6 GiB | 6.442450944 GB |
| 7 GiB | 7.516192768 GB |
| 8 GiB | 8.589934592 GB |
| 9 GiB | 9.663676416 GB |
| 10 GiB | 10.73741824 GB |
| 11 GiB | 11.81116006 GB |
| 12 GiB | 12.88490189 GB |
| 13 GiB | 13.95864371 GB |
| 14 GiB | 15.03238554 GB |
| 15 GiB | 16.10612736 GB |
| 16 GiB | 17.17986918 GB |
| 17 GiB | 18.25361101 GB |
| 18 GiB | 19.32735283 GB |
| 19 GiB | 20.40109466 GB |
| 20 GiB | 21.47483648 GB |
| 21 GiB | 22.5485783 GB |
| 22 GiB | 23.62232013 GB |
| 23 GiB | 24.69606195 GB |
| 24 GiB | 25.76980378 GB |
| 25 GiB | 26.8435456 GB |
| 26 GiB | 27.91728742 GB |
| 27 GiB | 28.99102925 GB |
| 28 GiB | 30.06477107 GB |
| 29 GiB | 31.1385129 GB |
| 30 GiB | 32.21225472 GB |
| 31 GiB | 33.28599654 GB |
| 32 GiB | 34.35973837 GB |
| 33 GiB | 35.43348019 GB |
| 34 GiB | 36.50722202 GB |
| 35 GiB | 37.58096384 GB |
More GiB to GB values
What is a gibibyte?
The gibibyte (GiB) is 2^30 = 1,073,741,824 bytes, a binary multiple defined by the IEC in 1998 to end the confusion over whether a kilobyte, megabyte and so on means a power of 1,000 or of 1,024.
What is a gigabyte?
The gigabyte (GB) is 1,000,000,000 bytes under the SI (decimal) definition used by storage manufacturers, network equipment and macOS.
Convert gibibytes to other units
Convert other units to gigabytes
Frequently asked questions
How many gigabytes are in a gibibyte?
One gibibyte is 1.073741824 gigabytes.
How many gibibytes are in a gigabyte?
One gigabyte is 0.9313225746 gibibytes.
What is the formula to convert gibibytes to gigabytes?
GB = GiB × 1.073741824.
How many GB is 8 GiB?
8.59 GB.