Gigabits per Second to Bytes per Second (Gbps to B/s)
1 gigabit per second (Gbps) = 125000000 bytes per second (B/s). 1 B/s = 8 × 10⁻⁹ Gbps. Example: 15 Gbps = 15 × 125000000 = 1875000000 B/s.
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1 Gbps = 125000000 B/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigabit per second to byte per second converter to paste a column from Excel.
How to Convert Gigabit per Second to Byte per Second
- 1 Gbps = 125000000 B/s
- 1 B/s = 8 × 10⁻⁹ Gbps
- Example: convert 15 Gbps to B/s: 15 Gbps = 15 × 125000000 B/s = 1875000000 B/s
Formula
B/s = Gbps × 125000000
Derivation from SI units:
- 1 Gbit/s = 10⁹ bit/s.
- 1 B/s = 8 bit/s.
- 1 Gbps = 1000000000 bps ÷ 8 bps per B/s = 125000000 B/s
Both units are defined exactly, so the factor is exact. Gigabit per Second definition: gigabit per second; Byte per Second definition: byte per second.
Worked examples
- A reading of 5 Gbps converts to 625000000 B/s.
5 Gbps × 125000000 = 625000000 B/s - A value of 40 Gbps is 5000000000 B/s.
40 Gbps × 125000000 = 5000000000 B/s
Gigabit per Second to Byte per Second conversion table
| Gigabits per Second (Gbps) | Bytes per Second (B/s) |
|---|---|
| 1 Gbps | 125000000 B/s |
| 2.5 Gbps | 312500000 B/s |
| 5 Gbps | 625000000 B/s |
| 10 Gbps | 1250000000 B/s |
| 25 Gbps | 3125000000 B/s |
| 40 Gbps | 5000000000 B/s |
| 100 Gbps | 12500000000 B/s |
| 400 Gbps | 50000000000 B/s |
Where it's used
Gigabits per Second are used for ethernet and fibre links, while bytes per second appear in file transfer speeds. Both measure data transfer rate (bandwidth), so the conversion is a fixed factor.
Gigabit per Second to other data transfer rate units
| Conversion | 1 Gbps equals |
|---|---|
| gigabit per second to byte per second | 125000000 B/s |
| gigabit per second to megabit per second | 1000 Mbps |
| gigabit per second to megabyte per second | 125 MB/s |
| gigabit per second to kilobit per second | 1000000 kbps |
| gigabit per second to gigabyte per second | 0.125 GB/s |
| gigabit per second to bit per second | 1000000000 bps |
| gigabit per second to kilobyte per second | 125000 kB/s |
| gigabit per second to mebibyte per second | 119.2092896 MiB/s |
Show 2 more units
| gigabit per second to terabit per second | 0.001 Tbps |
|---|---|
| gigabit per second to kibibyte per second | 122070.3125 KiB/s |
Frequently asked questions
How many bytes per second are in 1 gigabit per second?
1 Gbps = 125000000 B/s.
How do I convert gigabits per second to bytes per second?
Multiply the value in Gbps by 125000000. For example, 15 Gbps × 125000000 = 1875000000 B/s.
Is the Gbps to B/s conversion exact?
Yes. Both units are defined exactly, and 1 Gbps is exactly 125000000 B/s.
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). Gigabits per Second to Bytes per Second (Gbps to B/s). Retrieved October 25, 2026, from https://scientificconverters.com/data-rate/gigabits-per-second-to-bytes-per-second/
IEEE
Scientific Converters, "Gigabits per Second to Bytes per Second (Gbps to B/s)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-rate/gigabits-per-second-to-bytes-per-second/