Convert Gigabits to Bytes (Gbit to B)
1 gigabit (Gbit) = 125000000 bytes (B). 1 B = 8 × 10⁻⁹ Gbit. Example: 15 Gbit = 15 × 125000000 = 1875000000 B.
Also searched as gigabits to B, gigabits in B, gigabits into bytes, Gbit to B, Gbit in bytes, Gbit into byte, gigabit to byte, Gbit to bytes converter and how many bytes in a gigabit.
1 Gbit = 125000000 B
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigabit to byte converter to paste a column from Excel.
How to Convert Gigabit to Byte
- 1 Gbit = 125000000 B
- 1 B = 8 × 10⁻⁹ Gbit
- Example: convert 15 Gbit to B: 15 Gbit = 15 × 125000000 B = 1875000000 B
Formula
B = Gbit × 125000000
Derivation from SI units:
- 1 Gbit = 10⁹ bits.
- 1 byte = 8 bits (an octet).
- 1 Gbit = 1000000000 bit ÷ 8 bit per B = 125000000 B
Both units are defined exactly, so the factor is exact. Gigabit definition: gigabit; Byte definition: byte.
Worked examples
- A reading of 16 Gbit converts to 2000000000 B.
16 Gbit × 125000000 = 2000000000 B - A value of 128 Gbit is 16000000000 B.
128 Gbit × 125000000 = 16000000000 B
Gigabit to Byte conversion table
| Gigabits (Gbit) | Bytes (B) |
|---|---|
| 1 Gbit | 125000000 B |
| 2 Gbit | 250000000 B |
| 4 Gbit | 500000000 B |
| 8 Gbit | 1000000000 B |
| 16 Gbit | 2000000000 B |
| 32 Gbit | 4000000000 B |
| 64 Gbit | 8000000000 B |
| 100 Gbit | 12500000000 B |
| 128 Gbit | 16000000000 B |
| 256 Gbit | 32000000000 B |
| 500 Gbit | 62500000000 B |
| 1000 Gbit | 125000000000 B |
Where it's used
Gigabits are used for DRAM and NAND flash chip densities, while bytes appear in file and memory sizes. Both measure amount of digital information, so the conversion is a fixed factor.
Gigabit to other data storage units
| Conversion | 1 Gbit equals |
|---|---|
| gigabit to byte | 125000000 B |
| gigabit to kilobyte | 125000 kB |
| gigabit to megabyte | 125 MB |
| gigabit to gigabyte | 0.125 GB |
| gigabit to terabyte | 0.000125 TB |
| gigabit to bit | 1000000000 bit |
| gigabit to megabit | 1000 Mbit |
| gigabit to kibibyte | 122070.3125 KiB |
Show 5 more units
| gigabit to mebibyte | 119.2092896 MiB |
|---|---|
| gigabit to gibibyte | 0.1164153218 GiB |
| gigabit to kilobit | 1000000 kbit |
| gigabit to petabyte | 1.25 × 10⁻⁷ PB |
| gigabit to tebibyte | 0.0001136868377 TiB |
Frequently asked questions
How many bytes are in 1 gigabit?
1 Gbit = 125000000 B.
How do I convert gigabits to bytes?
Multiply the value in Gbit by 125000000. For example, 15 Gbit × 125000000 = 1875000000 B.
Is the Gbit to B conversion exact?
Yes. Both units are defined exactly, and 1 Gbit is exactly 125000000 B.
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 Gigabits to Bytes (Gbit to B). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/gigabits-to-bytes/
IEEE
Scientific Converters, "Convert Gigabits to Bytes (Gbit to B)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/gigabits-to-bytes/