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Gigabytes to Gibibytes Converter GB → GiB

1 gigabyte (GB) = 0.9313225746 gibibytes (GiB). Type a value below, the conversion happens instantly, entirely on your device.

1 GB = 0.9313225746 GiB

1000 gigabytes = 931.32257 gibibytes

1000 × 0.931323 = 931.32257

1 GB equals 0.931323 GiB, so multiplying by 0.931323 converts the value. The result describes the exact same quantity, only the measuring stick changes.
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How to convert gigabytes to gibibytes

gibibytes = gigabytes × 0.9313225746, multiply the gigabyte value by 0.931323.

Example: 1000 GB = 931.323 GiB.

To convert the other way: gigabytes = gibibytes ÷ 0.9313225746 — or use the dedicated GiB to GB converter .

One decimal gigabyte is 0.9313 GiB, so a "1 TB" (1,000 GB) drive shows as about 931 GiB in Windows. Nothing is missing; the drive maker and the OS are just using different standards.

Gigabytes to Gibibytes conversion table

Gigabytes (GB) Gibibytes (GiB)
0.1 0.093132257
0.25 0.23283064
0.5 0.46566129
1 0.93132257
2 1.8626451
3 2.7939677
4 3.7252903
5 4.6566129
6 5.5879354
7 6.519258
8 7.4505806
9 8.3819032
10 9.3132257
15 13.969839
20 18.626451
25 23.283064
30 27.939677
40 37.252903
50 46.566129
75 69.849193
100 93.132257
250 232.83064
500 465.66129
1000 931.32257

About the units

What is a gigabyte?

A gigabyte (GB) is 1,000,000,000 bytes (decimal standard). Storage devices and mobile data plans are sold in gigabytes; an hour of HD streaming uses roughly 3 GB.

What is a gibibyte?

A gibibyte (GiB) is 1,073,741,824 bytes (2³⁰), about 7.4% larger than a decimal gigabyte. The gap between GB and GiB explains "missing" drive space.

Frequently asked questions

How many gibibytes are in 1 gigabyte?

1 gigabyte (GB) = 0.9313225746 gibibytes (GiB).

What is the formula to convert gigabytes to gibibytes?

gibibytes = gigabytes × 0.9313225746, multiply the gigabyte value by 0.931323.

How do I convert GB to GiB without a calculator?

Multiply by 0.931 for a close estimate. Exact factor: 1 GB = 0.9313225746 GiB.

Is this GB-to-GiB converter accurate and private?

Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser, your input is never sent to a server, and the page keeps working offline.

Why does my 1 TB drive show only 931 GB?

The drive contains 1,000,000,000,000 bytes (1 TB decimal). Windows divides by 1,073,741,824 (binary GiB) and displays 931, labelled "GB" but actually GiB. Both figures describe the same number of bytes.

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