Quick video on using your oscilloscope and signal generator to determine the vaule of an unknown inductor. The link for the calculator I used is http://daycounter.com/Articles/How-To-Measure-Inductance.phtml
Here is another nice calculator website as well ..
http://www.calculatoredge.com/
Also wanted to add that I was adjusting the frequency in order to get the proper voltage at the junction of the inductor and resister to Vs / 2