Monday, 9 July 2018

macos - What's the actual download speed if I have Internet speed of 3Mbps?


I have an Internet plan of 3 Mbps, does that mean my download speed will reach 3 Mbps too? So far I'm only getting 300 KBps when I'm downloading files from the Internet.



Answer



As the name says, "actual download speed" is the actual speed, ie. the speed you get, 300 KBps. 3 Mbps is the theoretical speed, which is not necessarily equal to the actual speed (but should be close if your ISP is doing its job right).


The thing you're missing is that theoretical speed is measured in (mega/kilo)bits per second (lowercase b in Mbps) and actual speed is usually presented in (mega/kilo)bytes per second (uppercase B in KBps). It's really important, because 1 byte = 8 bits. So the theoretical speed of 3 Mbps is 0.375 MBps, that is around 375 KBps. This is the number you should compare with your actual speed.


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