A quick easy and free way of knowing what you're internet download speed and internet upload speed is to go to a website such as speedtest.net or many other websites that can check your internet speed.
All you do is load the website and then click on a button that will test your internet speed.
Another internet speed test to check your internet speed through is
https://www.speakeasy.net/speedtest/
Just go to those websites and click on a button and you will know your internet upload and download speed.