GiB/s to Mbps

1 gibibyte per second equals 8,589.934592 megabits per second exactly.

1 gibibyte per second = 8,589.934592 megabits per second

How to convert gibibytes per second to megabits per second

To convert gibibytes per second to megabits per second, multiply the number of gibibytes per second by 8,589.934592. This factor is exact. To go the other way, multiply megabits per second by 0.0001164153218 (rounded).

megabits per second = gibibytes per second × 8,589.934592

Example: 10 gibibytes per second = 85,899.34592 megabits 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

Gibibyte Per Second (GiB/s)

ComputingCurrent unit

1,073,741,824 bytes per second.

Gibibytes per second belong to the top of the speed range, where memory and fast storage move data in bulk. One gibibyte per second is 1,073,741,824 bytes per second. Multiplying by 8 gives 8,589,934,592 bits per second, so it is about 8.59 decimal gigabits per second and roughly 7.4 percent more than a decimal gigabyte per second.

The gi in the name stands for gigabinary, one of the contractions proposed in 1995 by an IUPAC committee. The IEC approved the finished prefixes in December 1998 as a way to separate binary multiples from SI ones. Later editions added further prefixes, and ISO/IEC 80000-13 now carries the binary prefix definitions. A gibibyte rate is easy to confuse with a gigabit rate, because the two differ by a factor of about 8.6, so conversions between them need care.

1 gibibyte per second = 8,589,934,592 bits per second (exactly).

Sources: NIST: Prefixes for binary multiples; Wikipedia: Binary prefix; Wikipedia: Data-rate units

Megabit Per Second (Mbps)

ComputingCurrent unit

1,000,000 bits per second. The unit of internet connection speeds; 8 Mbps is 1 MB/s.

Megabits entered everyday life through Ethernet. The original 10BASE5 version arrived in 1981 at 10 Mbit/s, Fast Ethernet raised the figure to 100 Mbit/s in 1995, and wireless followed, with 802.11b offering 11 Mbit/s in 1999. Telecommunications engineers had always meant exactly one million bits per second by the megabit, while computer memory vendors were stretching the word mega toward powers of two. That divergence is part of why the IEC later published separate binary prefixes.

Internet providers still sell service in Mbit/s, which is why a plan and a download counter seem to disagree. A byte is eight bits, so 100 Mbit/s is at most 12.5 MB/s, and a 1 GB file needs about 80 seconds at that rate under ideal conditions. Streaming is far lighter: YouTube video at 1080p is listed at roughly 3 to 8 Mbit/s with H.264, and 2160p at 8 to 35 Mbit/s. Real throughput is lower than the line rate because of protocol overhead.

1 megabit per second = 1,000,000 bits per second (exactly).

Sources: Wikipedia: Bit rate (Ethernet, Wi-Fi and streaming rates); NIST: Prefixes for binary multiples; Wikipedia: Megabit

Related conversions

See all data transfer rate units.