Illegal file-sharers also spend just under £80 a year on purchasing music legitimately, says Demos.
The research institute revealed that 10 percent of web users admitted to illegally downloading music on the web.
Furthermore, 80 percent of these people said they also purchased vinyl, CDs and MP3s legally.
However, Demos also said that those that claimed not to use peer-to-peer (p2p) sites such as The Pirate Bay, spent just £44 per year on music.
The research also revealed that 50 percent of web users accessed music via video-sharing site YouTube, while 22 percent relied on internet radio to listen to music on the web.
The majority of web users surveyed said 45p was the optimum price for an individual track. Just two percent said they would pay more than £1. Currently, web users pay between 79 and 099 to download an individual track.
"Politicians and music companies need to recognise that the nature of music consumption has changed and consumers are demanding lower prices and easier access to music," said Demos researcher Peter Bradwell.