Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Bi-Weekly Payments This calculator estimates the savings from paying a mortgage bi-weekly instead of monthly. Money Draining Food Myths These food myths will really put a drain on your wallet. Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy.