Mbps ↔ MB/s Converter
Convert network and transfer speeds between bits and bytes per second.
What this tool does
Convert Mbps to MB/s and back to understand the difference between network throughput and file-transfer speed. Since one byte contains eight bits, a 100 Mbps link has a theoretical ceiling of 12.5 MB/s before protocol overhead and other real-world losses.
How to use it
Enter the values requested by the calculator and check the result together with the notes shown below it.
Practical example
Use a realistic example from your own setup to compare scenarios. The result is a reference, not a replacement for manufacturer specifications.
How to interpret the result
Treat the result as an estimate whenever real-world factors are not available to the browser. For hardware, network or safety decisions, verify the relevant technical specifications.
Frequently asked questions
How many MB/s is 100 Mbps?
About 12.5 MB/s, because each byte is 8 bits.
Why does it distinguish Mbps from MBps?
Because lowercase b means bits and uppercase B means bytes; mixing them up changes the result by a factor of 8.