# Bandwidth Calculator

Our bandwidth calculator is a simple tool which will let you determine the download time for a file of a given size, provided you know your internet speed. It can also be used the other way round - you may use it as a download speed calculator if you know the time and file size. The unit most commonly used to express bandwidth is Mb/s (megabits per second). To find out what Mbps is, see below.

## Download speed and download time calculator

You will most likely want to use this calculator as a download time calculator, but you should know that our bandwidth calculator works either way you want - you can provide download time and filesize to figure out the speed at which it was downloaded (it essentially becomes a download speed calculator). If you provide the download speed and the time, it will calculate how much data may be downloaded over that particular time. As with all our tool, bandwidth calculator is just as flexible as you want it to be!

## What is Mbps?

Mbps or Mb/s stands for megabits per second or, in other words, millions of bits per second. SI prefixes still apply to download speed units, so you can form larger or smaller units by adding them, either as kilobits per second (kbps, thousands of bits), gigabits (Gbps, billions), terabits (Tbps, trillions), etc. As data can also be expressed in bytes, we may also use kBps, MBps, GBps, TBps, etc. One byte is 8 bits, so those values would be 8 times smaller. For example, 10 Mbps lets you download 1.25 MB per second.

Bandwidths are of various types and play an important role in determining the baud rate for various transmission devices.