Website calculating inductance, coupling coefficient so on

Hi guys,

I am trying to calculate inductance, coupling coefficient, and Q factor of two inductive coupled coils (Circular Air coil and Round Planar spiral coil) with varying some parameters like diameter, or number of turns. Do you guys know any website for that?

You may try this http://www.educypedia.be/electronics...ulatorcomp.htm

regards
bassa