Yes, this is for professionals. Several of us use Tax Tools https://www.taxtools.com/products_tt.aspx it has a pretty simple, but effective tax planner as one of it's many tools. It has RMD calculator and many other retirement calculators. 

Click the tabs at the site I posted the link to and see it's many offerings. You may just decide to look up a local Enrolled Agent or CPA or other Tax Professional in your area and work with them.