Internet speed refers to the speed which data or content travels from the World Wide Web to your home computer, tablet, or smartphone. The speed of this data is measured in megabits per second (Mbps).One megabit is equal to 1,024 kilobits. This conversion means 1.0 Mbps is more than 1,000 times faster than 1.0 kilobits per second (Kbps). High-speed Internet connection known as broadband (broad bandwidth) is defined by download speeds of at least 768 Kbps and upload speeds of at least 200 Kbps. The difference between download speeds and upload speeds can be explained in the following way: download speed refers to the rate that digital data is transferred from the Internet to your computer, while upload speed is the rate that online data is transferred from your computer to the Internet.

Here the Broadband Internet Speed Test results are given in bits per seconds.
1) 1 Byte = 8 bits
2) Speed test Result / 8 == Your download speed
speed test example :
3.5 MBps(bit) == 3.5 x 1024 Kbps(bit) == 3584 Kbps
3584 kbps/8 == 448 KBPS (Byte)
3) Broadband Internet Speed test Result == Your Broadband band speed plan(In Bit per Seconds)