Gigabytes to Kibibits (GB to Kibit)
1 gigabyte equals 7,812,500 kibibits exactly.
How to convert gigabytes to kibibits
To convert gigabytes to kibibits, multiply the number of gigabytes by 7,812,500. This factor is exact. To go the other way, multiply kibibits by 1.28×10⁻⁷.
kibibits = gigabytes × 7,812,500
Example: 10 gigabytes = 78,125,000 kibibits.
Decimal prefixes (kB, MB, GB) are powers of 1,000; binary prefixes (KiB, MiB, GiB) are powers of 1,024. Storage makers use decimal; Windows reports binary but labels it GB.
About these units
Gigabyte (GB)
1,000,000,000 bytes (decimal). Storage manufacturers and phone makers use this definition.
The gigabyte is where the decimal-versus-binary dispute turned into lawsuits. Drive makers advertise capacity in decimal units, so a 500 GB drive holds 500 billion bytes, but Windows reports sizes in binary units and shows about 465.7 of what it labels GB for the same drive. Early challenges against Western Digital and Seagate were settled, with Western Digital adding disclaimers that usable capacity may differ from the advertised figure.
A 2019 lawsuit was decided in the manufacturers' favor, with the court relying on the decimal definition. For scale, one gigabyte holds roughly an hour of standard-definition video at 2.2 Mbit/s. A single-layer DVD+R holds about 4.7 GB and a single-layer Blu-ray about 25 GB. RAM is still often sized in binary gigabytes, which the IEC would call gibibytes.
1 gigabyte = 1,000,000,000 bytes (exactly).
Sources: Wikipedia: Gigabyte; Wikipedia: Binary prefix; Wikipedia: Gibibyte
Kibibit (Kibit)
Exactly 1,024 bits.
Before 1999, a kilobit was often loosely taken to mean 1,024 bits as well as 1,000, and the IEC prefix kibi settled the matter. A kibibit (Kibit) is exactly 2^10 bits, which is 1,024 bits or 128 bytes. The IEC adopted the prefix in December 1998, and the BIPM's vocabulary of metrology notes that 1 kilobit should not be used to mean 1,024 bits.
The name starts with the first two letters of kilo and adds bi for binary, and the symbol writes the K as a capital to match the other binary prefixes. The difference from the decimal kilobit is 2.4 percent, the smallest of any pair.
The unit is a small one, equal to 128 bytes, and appears mainly where an exact binary bit count has to be stated without the ambiguity of kilobit.
1 kibibit = 128 bytes (exactly).
Sources: Wikipedia: Binary prefix; NIST: Prefixes for binary multiples; Wikipedia: Bit
Related conversions
- Kibibits to gigabytes (reverse)
- Gigabytes to bytes
- Gigabytes to kilobytes
- Gigabytes to megabytes
- Gigabytes to terabytes
- Gigabytes to bits
- Gigabytes to petabytes
- Gigabytes to kibibytes
- Gigabytes to mebibytes
- Gigabytes to gibibytes
- Gigabytes to tebibytes
- Gigabytes to kilobits
- Gigabytes to megabits
- Bytes to kibibits
- Kilobytes to kibibits
- Megabytes to kibibits
- Terabytes to kibibits
See all digital storage units.