What is the difference between Mbps and MB/s?

Mbps is megabits per second (lowercase b), the unit ISPs use to advertise speed. MB/s is megabytes per second (capital B), the unit your file manager shows during a download. Since 1 byte = 8 bits, MB/s = Mbps divided by 8.

Why does a 100 Mbps connection only download at 12.5 MB/s?

It is not slower — it is the same speed in different units. 100 megabits per second equals 100 / 8 = 12.5 megabytes per second. Real downloads are a little lower again because of protocol overhead.

Is my speed data sent anywhere?

No. The converter is privacy-first and runs entirely in your browser — nothing you type is uploaded or stored.

Mbps to MB/s Converter

Internet plans are advertised in megabits per second (Mbps), but your browser and file manager report downloads in megabytes per second (MB/s). The two differ by a factor of eight:

MB/s = Mbps ÷ 8 (because 1 byte = 8 bits)

So a 100 Mbps line tops out at 12.5 MB/s of actual file throughput, and a 1 Gbps line at 125 MB/s. Enter a value in either unit and the converter does the bit-to-byte maths instantly — all locally in your browser, with nothing sent anywhere.