Gigabytes to gibibytes
1 gigabyte = 0.931323 gibibytes
Type a value in gigabytes (GB) to get gibibytes (GiB) straight away. A gigabyte is smaller than a gibibyte, so the number goes down. Both units belong to data storage, measured here against the byte.
1 GB = 0.93132257 GiB
Formula
GiB = GB × 0.93132257
One gigabyte is 0.93132257 gibibytes, so multiply by that factor. You can also divide by 1.07374, the number of gigabytes in one gibibyte. Here GB is the value in gigabytes and GiB is the result in gibibytes.
Worked example: 64 gigabytes × 0.93132257 = 59.6046 gibibytes.
Gigabytes to gibibytes table
| gigabytes (GB) | gibibytes (GiB) |
|---|---|
| 1 GB | 0.931323 GiB |
| 2 GB | 1.86265 GiB |
| 3 GB | 2.79397 GiB |
| 4 GB | 3.72529 GiB |
| 5 GB | 4.65661 GiB |
| 6 GB | 5.58794 GiB |
| 7 GB | 6.51926 GiB |
| 8 GB | 7.45058 GiB |
| 9 GB | 8.3819 GiB |
| 10 GB | 9.31323 GiB |
| 15 GB | 13.9698 GiB |
| 20 GB | 18.6265 GiB |
| 25 GB | 23.2831 GiB |
| 30 GB | 27.9397 GiB |
| 40 GB | 37.2529 GiB |
| 50 GB | 46.5661 GiB |
| 60 GB | 55.8794 GiB |
| 75 GB | 69.8492 GiB |
| 100 GB | 93.1323 GiB |
Everyday gigabytes in gibibytes
| What it is | GB | GiB |
|---|---|---|
| an hour of SD video (about) | 1 GB | 0.931323 GiB |
| a single-layer DVD | 4.7 GB | 4.37722 GiB |
| a phone's base storage | 64 GB | 59.6046 GiB |
| a laptop SSD | 256 GB | 238.419 GiB |
| 1 TB drive | 1,000 GB | 931.323 GiB |
Quick estimate in your head
Multiply by about 0.93. For 64 GB that gives 59.52 GiB against an exact 59.6046 GiB, an error of 0.1%.
Watch out for
- Drive makers use decimal GB (10⁹ bytes), while Windows reports binary GiB but labels it GB. A 256 GB drive shows about 238 'GB'.
- A GiB is 7.37% larger than a GB. RAM is sized in GiB even when the label says GB.
About the units
Gigabyte (GB). 1,000,000,000 bytes (decimal). Phone storage and data plans are sold in GB.
Gibibyte (GiB). 2³⁰ bytes, about 7.4% more than a GB. RAM is sized in GiB.
Going the other way, 1 gibibyte is 1.07374 gigabytes.
Questions
How many gibibytes are in 1 gigabyte?
1 gigabyte is 0.931323 gibibytes, and 1 gibibyte is 1.07374 gigabytes.
How do I convert gigabytes to gibibytes?
Use GiB = GB × 0.93132257. For example, 64 gigabytes × 0.93132257 = 59.6046 gibibytes.
Why does my drive show less space than advertised?
Makers use decimal units (1 GB = 10⁹ bytes) while many operating systems count in binary (1 GiB = 2³⁰ bytes). A 1 TB drive therefore shows about 931 GiB.
How much is 1 TB drive in gibibytes?
1,000 GB is 931.323 GiB.
Source for the conversion factor: NIST: prefixes for binary multiples (IEC 80000-13).
Related conversions
- gibibytes to gigabytes
- gigabytes to megabytes
- gigabytes to terabytes
- mebibytes to gibibytes
- gibibytes to mebibytes
- bits to bytes