Convert Gigabytes to Gigabits (GB to Gbit)
1 gigabyte (GB) = 8 gigabits (Gbit). 1 Gbit = 0.125 GB. Example: 15 GB = 15 × 8 = 120 Gbit.
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1 GB = 8 Gbit
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigabyte to gigabit converter to paste a column from Excel.
How to Convert Gigabyte to Gigabit
- 1 GB = 8 Gbit
- 1 Gbit = 0.125 GB
- Example: convert 15 GB to Gbit: 15 GB = 15 × 8 Gbit = 120 Gbit
Formula
Gbit = GB × 8
Derivation from SI units:
- 1 GB = 10⁹ bytes = 8 × 10⁹ bits (decimal, SI).
- 1 Gbit = 10⁹ bits.
- 1 GB = 8000000000 bit ÷ 1000000000 bit per Gbit = 8 Gbit
Both units are defined exactly, so the factor is exact. Gigabyte definition: gigabyte; Gigabit definition: gigabit.
Worked examples
- A reading of 16 GB converts to 128 Gbit.
16 GB × 8 = 128 Gbit - A value of 128 GB is 1024 Gbit.
128 GB × 8 = 1024 Gbit
Gigabyte to Gigabit conversion table
| Gigabytes (GB) | Gigabits (Gbit) |
|---|---|
| 1 GB | 8 Gbit |
| 2 GB | 16 Gbit |
| 4 GB | 32 Gbit |
| 8 GB | 64 Gbit |
| 16 GB | 128 Gbit |
| 32 GB | 256 Gbit |
| 64 GB | 512 Gbit |
| 100 GB | 800 Gbit |
| 128 GB | 1024 Gbit |
| 256 GB | 2048 Gbit |
| 500 GB | 4000 Gbit |
| 1000 GB | 8000 Gbit |
Where it's used
Gigabytes are used for phone and laptop storage, while gigabits appear in DRAM and NAND flash chip densities. Both measure amount of digital information, so the conversion is a fixed factor.
Gigabyte to other data storage units
| Conversion | 1 GB equals |
|---|---|
| gigabyte to gigabit | 8 Gbit |
| gigabyte to byte | 1000000000 B |
| gigabyte to kilobyte | 1000000 kB |
| gigabyte to megabyte | 1000 MB |
| gigabyte to terabyte | 0.001 TB |
| gigabyte to bit | 8000000000 bit |
| gigabyte to megabit | 8000 Mbit |
| gigabyte to kibibyte | 976562.5 KiB |
Show 5 more units
| gigabyte to mebibyte | 953.6743164 MiB |
|---|---|
| gigabyte to gibibyte | 0.9313225746 GiB |
| gigabyte to kilobit | 8000000 kbit |
| gigabyte to petabyte | 0.000001 PB |
| gigabyte to tebibyte | 0.0009094947018 TiB |
Frequently asked questions
How many gigabits are in 1 gigabyte?
1 GB = 8 Gbit.
How do I convert gigabytes to gigabits?
Multiply the value in GB by 8. For example, 15 GB × 8 = 120 Gbit.
Is the GB to Gbit conversion exact?
Yes. Both units are defined exactly, and 1 GB is exactly 8 Gbit.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Gigabytes to Gigabits (GB to Gbit). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/gigabytes-to-gigabits/
IEEE
Scientific Converters, "Convert Gigabytes to Gigabits (GB to Gbit)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/gigabytes-to-gigabits/