GB to GiB table
| Gigabytes | Gibibytes |
|---|---|
| 1 GB | 0.931 GiB |
| 8 GB | 7.45 GiB |
| 16 GB | 14.9 GiB |
| 32 GB | 29.8 GiB |
| 64 GB | 59.6 GiB |
| 128 GB | 119.21 GiB |
| 250 GB | 232.83 GiB |
| 256 GB | 238.42 GiB |
| 500 GB | 465.66 GiB |
| 512 GB | 476.84 GiB |
| 1,000 GB | 931.32 GiB |
| 2,000 GB | 1,862.65 GiB |
| 4,000 GB | 3,725.29 GiB |
The formula
gibibytes = gigabytes ÷ 1.073741824
Worked example
500 GB ÷ 1.07374 = 465.661 GiB
The other way round, gibibytes to gigabytes: gigabytes = gibibytes × 1.073741824.
In your head
Take away 7%. 500 GB → 500 − 35 = 465 GiB (465.66 exactly).
Questions
1 gigabyte is 0.931323 gibibytes (0.931322574615 exactly).
Divide gigabytes by 1.07374 to get gibibytes. For example, 500 GB ÷ 1.07374 = 465.661 GiB.
About 465 “GB”, which are really GiB. No space is missing; it is a different unit.
No. Since 2009 macOS counts in decimal GB, so a 500 GB drive shows as 500 GB.