Convert internet speed and data transfer rate between bits and bytes per second — Mbps, MB/s, Gbps and more.
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Internet speed is usually advertised in bits per second; file sizes and download managers usually show bytes per second (1 byte = 8 bits).
About bandwidth converter
Internet speeds are quoted in bits per second, but downloads are shown in bytes per second. That difference explains why a 100 Mbps plan downloads at about 12.5 MB/s at best.
The relationship
8 bits = 1 byte, so divide Mbps by 8 to get MB/s.
1 Gbps = 1000 Mbps.
Real speeds are usually lower because of Wi-Fi, distance and network load.
A worked example
A 100 Mbps plan moves at most 12.5 megabytes each second. A 1 Gbps line moves 125 MB per second, so a 1 GB file takes about 8 seconds at best. A 4 Mbps mobile connection moves only 0.5 MB per second.
Why the number on your speed test differs
Providers advertise the best case speed to their own server.
Wi-Fi, distance from the router and other users lower it.
A test result in Mbps will look eight times bigger than the same speed in MB/s.
How to use bandwidth converter
1Enter a valueType the speed or transfer rate.
2Pick your unitsChoose what you're converting from and to.
3Read the resultThe converted value updates instantly.
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