There is a free online service that allow you be able to check your current potential upload speed and download speed. It’s speedtest.net. By using speedtest.net, you can consistently verify if your ISP (Internet service Provider) is delivering the connection speed they promised.
Speedtest.net opens hundreds of testing locations around the world to anyone who would like to clearly know about the performance of their Internet connection. And most importantly, it is USEFUL & FREE.
Here we go, visit their website via: http://www.speedtest.net/, a Flash application should be there.
Click Begin Test to start checking your Internet connection.
After few minutes, it will calculate and show your current Download Speed and Upload Speed as below:
Enjoy with your Internet connection speed.