Gibibyte

It has been suggested that this article be merged into (added to) the Byte page. (Discuss)

The gibibyte (symbol: GiB) is a unit of measurement in computers and similar electronic devices. One gibibyte holds 1024 mebibytes (MiB). Some people call this number of bytes the gigabyte. This would be considered the binary equivalent to the base-10 gigabyte, which consists of exactly one billion bytes.

The gibibyte is equivalent to 2³⁰ bytes (1 073 741 824 bytes) while the gigabyte is 10⁹ bytes (1,000,000,000 or a billion bytes).

1024 gibibytes make one tebibyte.

While on storage GB effectively differs from GiB;^[1] using base 10 in memory is considered an error prone practice, and it's normally troublesome due to convention taken in the information technology market. ^[2]

Generally GiB and GB are considered equal when measuring all volatile memory (RAM, Cache, vRAM, etc...)^[3]

• Kibibyte
• Mebibyte
• Tebibyte
• Pebibyte

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1. ↑ "Hard disk drive", Wikipedia, 2026-07-20, retrieved 2026-07-22
2. ↑ Tanenbaum, Andrew S. "Structured Computer Organization" (PDF).
3. ↑ "Transistor count", Wikipedia, 2026-07-11, retrieved 2026-07-22