Medigap Plan Cost Calculator

Compare Medicare Supplement (Medigap) plans G, N, F, and HDG — estimate your monthly premium and annual out-of-pocket vs Medicare Advantage.

Enter the values the calculator asks for and the result updates instantly in your browser. Every input is documented in the form, and the educational notes below the calculator explain what the output means and any common pitfalls. Nothing is sent to a server - all the math happens on your device.

Yes - every calculator on WhichCalc is completely free with no signup, no usage limits, and no tracking on the calculation itself. Results display instantly in your browser and your inputs are never sent to a server. Bookmark the page if you use this calculator regularly.