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Gibibyte to Gigabyte Converter

Enter a size in gibibytes to convert to gigabytes and bytes.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

Storage sizes are measured in two incompatible systems: the binary (IEC) system, where a gibibyte (GiB) equals exactly 2³⁰ = 1,073,741,824 bytes, and the decimal (SI) system, where a gigabyte (GB) equals 10⁹ = 1,000,000,000 bytes. Because operating systems traditionally report binary values while manufacturers label products in decimal, converting GiB to GB multiplies by 1.073741824 — which is exactly why a “1 TB” drive shows up as roughly 931 GiB in your file explorer.

This calculator clears up that mismatch by converting a size in gibibytes to both its decimal gigabyte value and raw byte count, which is useful whenever you need to reconcile a drive's advertised capacity, a memory module spec sheet, or a cloud storage quota against what your OS actually reports.

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