A ROI & Cash-on-Cash Return Calculator helps real estate investors measure how efficiently their invested cash is generating profit. By comparing annual cash flow—rental income minus expenses and debt payments—to the total initial investment required to acquire and prepare the property, investors can quickly determine whether a deal meets their desired return thresholds. ROI shows the overall profitability of the investment, while cash-on-cash return focuses specifically on the performance of the actual cash invested. This makes the calculator a powerful tool for evaluating rental properties, comparing multiple opportunities, and making confident investment decisions.