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 Question Thank you! Oops! Related Content Interested in a Fuel Efficient Car? Estimate how many months it may take to recover the out-of-pocket costs when buying a more efficient vehicle. Bi-Weekly Payments This calculator estimates the savings from paying a mortgage bi-weekly instead of monthly. Making a Charitable Contribution There are benefits and limitations when you decide to donate stock.