FORMULA
How to convert
GiB = GB × 0.931322574615Example: 10 GB = 9.31322575 GiB.
GB → GIB
Gigabytes to Gibibytes
Convert gigabytes to gibibytes with an exact, deterministic calculation.
LIVE CONVERSIONDECIMAL ENGINE EXACT_
1 GB = 0.931322574615 GiB
MULTI-CONVERT
QUICK ANSWER
1 Gigabyte
0.931322574615 GiB
REFERENCE TABLE
Gigabyte to Gibibyte
| gigabytes | gibibytes |
|---|---|
| 1 GB | 0.93132257 GiB |
| 5 GB | 4.65661287 GiB |
| 10 GB | 9.31322575 GiB |
| 25 GB | 23.28306437 GiB |
| 50 GB | 46.56612873 GiB |
| 100 GB | 93.13225746 GiB |
ABOUT THIS CONVERSION
Convert gigabytes to gibibytes
A decimal gigabyte contains exactly 1,000,000,000 bytes, while a binary gibibyte contains exactly 1,073,741,824 bytes. Drive manufacturers commonly use GB; some operating systems report binary-sized quantities even when the interface label is ambiguous.
Real-world example
A nominal 256 GB storage amount is 238.4185791 GiB before formatting, system files, recovery partitions, and reserved space reduce the capacity available to the user.
Rounding and precision
Keep enough precision to explain capacity differences, but whole MB or GB often suffice for user-facing estimates. Transfer-time calculations also need protocol overhead and actual throughput, not only a storage-unit conversion.
Regional context
These are international technical conventions rather than regional units. Usage is inconsistent, however: some interfaces display a binary quantity but label it GB instead of GiB. Check the stated prefix definition.
Common mistake
Do not assume GB and GiB are alternative spellings for the same amount. Their difference grows with capacity, and it is separate from formatting overhead.
Editorial method
Definitions and sources are listed below. Calculations retain more precision than the default display and round only for presentation.
USEFUL ANSWERS
GB to GiB FAQs
Why does a 256 GB drive appear smaller?
Part comes from decimal GB versus binary GiB, and additional space can be used by formatting and system partitions.
Which prefixes are binary?
KiB, MiB, GiB, and TiB are binary prefixes based on powers of 1,024.
How do I convert gigabytes to gibibytes?
Enter the GB value in the calculator. It applies the stored factor and offset definitions and returns the equivalent in GiB; the formula and common-value table are shown on this page.
Is the GB to GiB conversion exact?
Defined measurement relationships are calculated with decimal arithmetic from stored standards. The displayed answer may be rounded for readability. Currency results instead depend on the dated reference rate shown.
FROM UNIT
Gigabyte
One gigabyte (GB) equals 8000000000 bit units (bit) in the converter's reference scale. It measures digital information; decimal and IEC binary prefixes remain distinct.
IEC binary prefixes ↗Definition verified 14 August 2026TO UNIT
Gibibyte
One gibibyte (GiB) equals 8589934592 bit units (bit) in the converter's reference scale. It measures digital information; decimal and IEC binary prefixes remain distinct.
IEC binary prefixes ↗Definition verified 14 August 2026Content reviewed by Akhil Saroop · 16 August 2026 · Report an error on this page