[Spinnetti]

Good stuff, but misses airspeed. True airspeed = altitude adjusted speed +- wind velocity which either makes you faster or slower relative to ground speed. Since you are trying to go somewhere, ground speed is what you want to know to see how "fast" you are going!

BTW, the internet is your friend.. there are a zillon different ways to answer most questions with a simple google search, and there are tons of math/unit converters...