How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Related Content My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Insuring Your Business With a Buy/Sell Agreement It may help your business be better prepared in the event of the death of a principal or key employee.