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ROI Calculator (ROI, Payback, NPV, IRR)

Calculate Return on Investment, payback period, annualized ROI (geometric mean), Net Present Value (NPV) and Internal Rate of Return (IRR) via bisection. Enter initial investment, annual cash flows, discount rate, terminal value. Profitability check (NPV > 0 and IRR > discount rate). Export as text or CSV. 18 extra features: cash flow parser, total cash flow, net profit, ROI, annualized ROI, payback period (year+month), NPV, IRR (bisection), discount rate applier, terminal value applier, text report, CSV export, history (localStorage), shareable URL, summary stats, 5 ROI target presets, profitability indicator, copy & download. 100% client-side.

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Calculate Return on Investment, payback period, annualized ROI (geometric mean), Net Present Value (NPV) and Internal Rate of Return (IRR) via bisection. Enter initial investment, annual cash flows, discount rate, terminal value. Profitability check (NPV > 0 and IRR > discount rate). Export as text or CSV. 18 extra features: cash flow parser, total cash flow, net profit, ROI, annualized ROI, payback period (year+month), NPV, IRR (bisection), discount rate applier, terminal value applier, text report, CSV export, history (localStorage), shareable URL, summary stats, 5 ROI target presets, profitability indicator, copy & download. 100% client-side. Everything runs locally in your browser — your data never leaves your device.

How to use

  1. Enter your input in the tool above.
  2. Adjust any options to your preference.
  3. Use the Copy or Download buttons to save the result.
  4. Everything happens locally — your data never leaves your browser.
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