Gibibytes to Gigabytes Converter

A gibibyte is 1,073,741,824 bytes, 1,024 to the third power. A gigabyte is 1,000,000,000 bytes. So 1 GiB = 1.0737 GB in this converter, and the binary unit is 7.37% bigger. Each step up the prefix ladder multiplies in another factor of 1.024, so the difference widens:

Tebibytes aren't in the converter's list; the row is there to show where the trend goes.

• RAM. Memory comes in power-of-two sizes, so a module sold as 16 GB holds 16 GiB, which is 17.1799 GB in decimal terms.
• Linux tools. Commands such as df run with -h print sizes in powers of 1,024.
• Cloud consoles. Some providers size virtual disks and memory in GiB and say so; check the label before comparing with a plan written in GB.
• Windows. File Explorer divides by 1,024 but writes GB, so its GB figures are GiB in practice.

Multiplying by 1.074 lands within 0.024% of the converter: 8 GiB becomes 8.592 GB against the true 8.5899. Multiplying by 1.07 is easier but 0.35% low.

Going from GB to GiB, multiply by 0.93132, or take off about 7%. A 512 GB drive is 476.84 GiB.

Because the gap is a fixed percentage, it adds up on large amounts. 1,024 GiB, a full binary tebibyte, converts to 1,099.51 GB, almost 100 GB more than the round number suggests.

The same lists cover the smaller binary units. Choose Mebibytes in the From list and Megabytes in the To list, and 512 MiB converts to 536.87 MB. Kibibytes to Kilobytes turns 64 KiB into 65.536 KB. Each pair follows the percentage in the table above, so you can sanity-check a result by eye.

Fractions work too: 1.5 GiB is 1.6106 GB.