GB/s to B/s
1 gigabyte per second equals 1,000,000,000 bytes per second exactly.
How to convert gigabytes per second to bytes per second
To convert gigabytes per second to bytes per second, multiply the number of gigabytes per second by 1,000,000,000. This factor is exact. To go the other way, multiply bytes per second by 1×10⁻⁹.
bytes per second = gigabytes per second × 1,000,000,000
Example: 10 gigabytes per second = 10,000,000,000 bytes per second.
Network speeds are quoted in bits per second (lowercase b), while file sizes use bytes (uppercase B). Divide Mbps by 8 for MB/s.
About these units
Gigabyte Per Second (GB/s)
1,000,000,000 bytes per second (8 Gbps). Memory and fast SSD bandwidth.
The gigabyte grew out of the same habit of rounding 1,024 to 1,000. In 1998 the IEC published binary prefixes, reserving gigabyte for the decimal value of 1,000,000,000 bytes and naming 1,073,741,824 bytes a gibibyte. Disk makers have used decimal capacities since the first disk drive, which is why a drive sold as 400 GB can appear as about 372 GB in Windows, while macOS, iOS and Android report decimal sizes.
A gigabyte per second is 1,000,000,000 bytes per second, equal to 8 Gbit/s. At that rate a 25 GB single-layer Blu-ray worth of data transfers in 25 seconds, and one hour of standard-definition video at 2.2 Mbit/s, about 1 GB, would pass in a single second. A 10 Gigabit Ethernet link, by comparison, tops out near 1.25 GB/s. Memory and storage interfaces tend to be described in this unit because their bandwidth is far beyond what ordinary networks offer.
1 gigabyte per second = 8,000,000,000 bits per second (exactly).
Sources: Wikipedia: Gigabyte; Wikipedia: 10 Gigabit Ethernet; NIST: Prefixes for binary multiples
Byte Per Second (B/s)
Eight bits per second.
Byte is a younger word than bit. Werner Buchholz coined it in June 1956 during the early design of the IBM Stretch computer, deliberately spelling it with a y so that nobody would mistake it for bit. At first it had no fixed size, and Stretch's early design allowed groups of one to six bits. Eight-bit bytes were then built into Stretch, and IBM's System/360 spread them widely in the 1960s. Another person, Louis Dooley, has also claimed to have coined the term at MIT Lincoln Laboratory around 1956 or 1957.
A byte per second is eight bits per second, the smallest rate counted in bytes. Protocol documents that need to avoid any ambiguity often use the word octet for exactly eight bits. The unit is tiny by modern standards. On serial links, start, stop and parity bits mean the line must run at a higher bit rate than the byte rate alone suggests.
1 byte per second = 8 bits per second (exactly).
Sources: Wikipedia: Byte; Wikipedia: Bit rate; Wikipedia: Data-rate units
Related conversions
- B/s to GB/s (reverse)
- GB/s to bps
- GB/s to Kbps
- GB/s to Mbps
- GB/s to Gbps
- GB/s to MB/s
- GB/s to Tbps
- GB/s to KB/s
- GB/s to MiB/s
- Bps to B/s
- Kbps to B/s
- Mbps to B/s
- Gbps to B/s
- MB/s to B/s
- Tbps to B/s
- KB/s to B/s
- MiB/s to B/s
See all data transfer rate units.