Gibibytes to gigabytes
1 gibibyte = 1.07374 gigabytes
Type a value in gibibytes (GiB) to get gigabytes (GB) straight away. A gibibyte is larger than a gigabyte, so the number goes up. Both units belong to data storage, measured here against the byte.
1 GiB = 1.0737418 GB
Formula
GB = GiB × 1.0737418
One gibibyte is 1.0737418 gigabytes, so multiply the gibibyte value by that factor. Here GiB is the value in gibibytes and GB is the result in gigabytes.
Worked example: 16 gibibytes × 1.0737418 = 17.1799 gigabytes.
Gibibytes to gigabytes table
| gibibytes (GiB) | gigabytes (GB) |
|---|---|
| 1 GiB | 1.07374 GB |
| 2 GiB | 2.14748 GB |
| 3 GiB | 3.22123 GB |
| 4 GiB | 4.29497 GB |
| 5 GiB | 5.36871 GB |
| 6 GiB | 6.44245 GB |
| 7 GiB | 7.51619 GB |
| 8 GiB | 8.58993 GB |
| 9 GiB | 9.66368 GB |
| 10 GiB | 10.7374 GB |
| 15 GiB | 16.1061 GB |
| 20 GiB | 21.4748 GB |
| 25 GiB | 26.8435 GB |
| 30 GiB | 32.2123 GB |
| 40 GiB | 42.9497 GB |
| 50 GiB | 53.6871 GB |
| 60 GiB | 64.4245 GB |
| 75 GiB | 80.5306 GB |
| 100 GiB | 107.374 GB |
Everyday gibibytes in gigabytes
| What it is | GiB | GB |
|---|---|---|
| a small app | 1 GiB | 1.07374 GB |
| 32-bit memory limit | 4 GiB | 4.29497 GB |
| laptop RAM | 8 GiB | 8.58993 GB |
| laptop RAM (more) | 16 GiB | 17.1799 GB |
| a workstation's RAM | 64 GiB | 68.7195 GB |
Quick estimate in your head
Multiply by about 1.1. For 16 GiB that gives 17.6 GB against an exact 17.1799 GB, an error of 2.4%.
Watch out for
- A GiB is 7.37% larger than a GB. RAM is sized in GiB even when the label says GB.
- Drive makers use decimal GB (10⁹ bytes), while Windows reports binary GiB but labels it GB. A 256 GB drive shows about 238 'GB'.
About the units
Gibibyte (GiB). 2³⁰ bytes, about 7.4% more than a GB. RAM is sized in GiB.
Gigabyte (GB). 1,000,000,000 bytes (decimal). Phone storage and data plans are sold in GB.
Going the other way, 1 gigabyte is 0.931323 gibibytes.
Questions
How many gigabytes are in 1 gibibyte?
1 gibibyte is 1.07374 gigabytes, and 1 gigabyte is 0.931323 gibibytes.
How do I convert gibibytes to gigabytes?
Use GB = GiB × 1.0737418. For example, 16 gibibytes × 1.0737418 = 17.1799 gigabytes.
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 a workstation's RAM in gigabytes?
64 GiB is 68.7195 GB.
Source for the conversion factor: NIST: prefixes for binary multiples (IEC 80000-13).
Related conversions
- gigabytes to gibibytes
- megabytes to gigabytes
- gigabytes to megabytes
- gigabytes to terabytes
- terabytes to gigabytes
- gibibytes to mebibytes