Internet speed is Kbps or Mbps.
Kbps ( b is small letter ) kilo bits per second
Mbps ( b is small letter ) mega bits per second
Your download speed is KBps or MBps.
KBps ( b is capital letter ) Kilo Bytes per second
MBps ( b is capital letter ) Mega Bytes per second
If your internet connection is 16 Mbps then your maximum file download speed is 2 MBps.
16 Mega bits per second is internet speed
2 Mega Bytes per second is maximum file download speed
8 bits = 1 byte
16 Mega bits = 2 Mega Byte
16 divided by 8 = 2.
Internet speed is SI value
Download speed is BI value
SI values are calculated using the Internation System of Units
BI values are calculated using Binary Units.
Binary units are prefered by operating systems
I've got a 125Mbps download and 10Mbps upload, but I rarely use the full bandwidth. ;)