Streaming radio -- it's consuming bandwith

I am interested in listening to internet radio. My broadband package is limited to 3GB of downloads per month. How is that calculated when you listen to internet radio? Chu Lim

The download is calculated by adding up the data received over the listening time, as though you were downloading a file. Internet radio stations can send anything from 16 kilobits per second (low quality voice) to 128kbps (high quality stereo). If a station broadcasts at 56kbps, that's around 25 megabytes per hour. Listening for four hours a day would use your monthly 3GB allowance.