Your PDK may have some parametric pcells that can be customized for certain inductor values.Otherwise you should select a inductor pattern/layout such as spiral,octagon,square,rectangular etc. and then you have to find approximate value for this inductor.There are many equations in the literature for that but don't forget these equations are just approximations and the real value can be pretty far from equation based value.
After that, you have to do a EM simulation in order to find the real value.For that purpose, you can use a planar EM simulator such as Keysight Momentum or Sonnet Blink that are integrated into Cadence ADE.
And finally, you do EM simulations in an iterative manner until find the final and wanted value ( cut and try ).So, there is no straightforward method to create Microwave inductors on the silicon due to different substrate structures,different material compositions.