Gigabytes to Gibibytes Converter
Convert decimal gigabytes to binary gibibytes and back.
Separate decimal and binary storage units
Gigabyte and gibibyte sound similar but use different byte counts. A decimal gigabyte contains one billion bytes, while a binary gibibyte contains two to the thirtieth bytes. This converter makes that distinction explicit, avoiding the misleading assumption that the labels are interchangeable.
The default 1 GB converts to 0.931323 GiB. In reverse, 1 GiB converts to 1.07374 GB. The reference table shows how the gap grows with capacity, which helps explain differences between product labels and some operating-system displays.
Local storage math without scanning files
Capacity values are processed only in your browser. The tool does not inspect a disk, upload a file, or estimate formatted space. Filesystem overhead, reserved sectors, snapshots, compression, and manufacturer reporting practices remain separate from the exact byte-unit conversion.
Frequently Asked Questions
What is the difference between GB and GiB?
One GB is one billion bytes, while one GiB is 1,073,741,824 bytes.
Why does a drive look smaller in some software?
Storage vendors often label decimal GB, while some operating systems report binary-sized units, creating a numeric difference.
Does this calculate usable disk space?
No. Formatting, partitions, metadata, recovery areas, and reserved space can reduce usable capacity.
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