How it works
NPV / IRR Calculator
Net Present Value (NPV) and Internal Rate of Return (IRR) are the two most widely used metrics for evaluating investments, projects, and business decisions. NPV tells you the total value created in today's money; IRR tells you the effective annual return your cash flows generate.
Enter your cash flows as a series — starting with the initial outflow (negative) followed by periodic inflows (positive). Set a discount rate and the tool instantly computes NPV, estimated IRR, payback period, and profitability index. The cash flow chart and year-by-year table give you a complete picture.
Use the presets to model common scenarios like a small business investment, real estate deal, or startup project. All calculations run locally in your browser.