Tính toán Mbps

Instructions

1. • 1

     Express the size of the computer file in bytes. The prefixes kilo-, mega- and giga- refer to multiples of 1,024, rather than 1,000.

     Assume a file is 32 MB in size. Expressing the file size in bytes would be 32 X 1,024 X 1,024 = 33,554,432 bytes.

   • 2

     Multiply the file's number of bytes by eight to find the number of bits.

     Continuing with the same example file size, the file would contain 33,554,432 bytes X 8 bits/byte = 268,435,456 bits.

   • 3

     Divide the number of bits transferred by the elapsed time, in seconds, it takes to transfer the file. Convert minutes into seconds by multiplying the number of minutes by 60.

     Continuing the example, assume the transfer required 26 minutes and 50.60 seconds.

     26 x 60 = 1,560 seconds

     1560 + 50.60 = 1,610.60 seconds

     268,435,456 / 1,610.60 = 166,667.99 bps

   • 4

     Express the speed as Mbps by dividing bps by 1,000,000.

     Using the example, the network runs at a speed of 0.17 Mbps.