LOL, it's not a toy that I just found. LOL, I've been using it for years.
There are some others, but this is one of the more consistent ones.
You can see the tests in bits, bytes, megabits, and megabytes. Just go to the test page, and click on my results, then choose what format you want to see your results in.
It also stores all of your tests, (so you can do an average)