How To Find Out What My Bandwidth Is?by Juderson Jean-Baptiste
The speed of your Internet connection depends on your router or modem, Web browser, Internet configurations and the service from your Internet service provider (ISP). But the type of service you receive from your ISP is the primary factor that affects your Internet speed. If you think your Internet connection is not running at the correct speeds, check the actual speed of your connection online. Internet speed is typically determined by download and upload speeds in megabits per second (Mbps).
Calculate the speed of your Internet with Speedtest.net. Access the main home page, select a location and click "Begin Test" (see Resource section).
Check your speed with Speakeasy.net. Go to the "speed test" Web page and click a location to automatically start the speed test (see Resource section).
Test the speed of your Internet connection with my-speedtest.com. Go to the "speed test" section of the website, scroll down and click "Begin Test."
Write down the upload and download speeds that the sites give you. Run the tests later and compare the two results.