The BUSY ROI Calculator helps you quickly assess how well an investment has performed. It eliminates manual calculations, shows both absolute and annualized ROI, and helps you compare different investment options with ease. Free return on investment ( ROI) calculator that helps investors calculate return on investment , investment gain, and annualized ROI rates. Calculate ROI , NPV, and payback period with this easy-to-use investment calculator . Perfect for financial planning, budgeting, and profitability analysis. Free return on investment (ROI) calculator that returns total ROI rate and annualized ROI using either actual dates of investment or simply investment length.