Lowercase b means bits
Mbps means megabits per second and is commonly used for network speed. Uppercase B means bytes, so MB/s is commonly used for file transfer progress.
Divide Mbps by eight to get MB/s
A 100 Mbps connection has a theoretical transfer rate of 12.5 MB/s. Multiply MB/s by eight for the reverse conversion.
Converted speed is still theoretical
The equation converts units only. It does not subtract protocol overhead or account for server limits, radio conditions and congestion.
Frequently asked questions
Is 100 Mbps the same as 100 MB/s?
No. 100 Mbps equals 12.5 MB/s. A true 100 MB/s transfer corresponds to 800 Mbps.
Why do speed tests use Mbps?
Network providers and speed tests conventionally report bits per second, while operating systems often show file sizes and transfer rates in bytes.
Does 5G speed use Mbps or MB/s?
Carrier and speed-test results normally use Mbps or Gbps. Download screens may show MB/s.