Bits to Bytes Converter

One byte equals 8 bits, full stop. The 8-bit byte was standardized in the 1960s with the System/360 and has been the universal unit of computer memory ever since. So 1 KB = 8 kbit, 1 MB = 8 Mbit, and 1 GB = 8 Gbit. That single rule is why network speeds advertised in Mbps (megabits per second) look so much larger than the MB/s (megabytes per second) you see in a download manager: divide by 8 to translate between them.

Network gear has always counted bits because that is the unit a wire actually moves: a 1 Gbps Ethernet link clocks out 10^9 bits per second on the line, regardless of how those bits get framed into bytes. Storage systems count bytes because that is the smallest addressable unit of memory and the natural size of a character. The convention is so old that ISPs, switches, NIC spec sheets, and every standards body (ITU, IEEE) still quote Mbps and Gbps, while operating systems show file sizes in MB and GB. Both numbers are correct; they just measure different sides of the same pipe.

Divide Mbps by 8 to get the decimal MB/s line-rate equivalent. Thus 100 Mbps equals 12.5 MB/s and 1 Gbps equals 125 MB/s before protocol and application overhead. Actual transfer throughput may be lower.

No, but the gap is small. 1 Mbps is 1,000,000 bits per second (decimal SI, 10^6), the convention used for all network bandwidth. 1 Mibps is 1,048,576 bits per second (binary, 2^20), the convention often used for memory and binary file sizes. The two differ by about 4.86 percent. This converter uses the decimal SI definition for Mbps and Gbps because that is what ISPs, IEEE, and ITU specify; storage MB and GB here are also decimal (10^6 and 10^9 bytes), matching how drive manufacturers label capacity.

Requirements depend on the service, codec, resolution, concurrent users, latency, and network conditions. A 1 GB decimal file has a theoretical transfer time of 80 seconds at 100 Mbps or 8 seconds at 1 Gbps, but overhead and bottlenecks make real transfers slower. Use each service's current requirements and measured peak usage for planning.