IRR Calculator

Free Online IRR Calculator

Internal Rate of Return · NPV Analysis · Project Comparison.

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IRR Calculator

Internal Rate of Return · NPV Analysis · Project Comparison

The Internal Rate of Return (IRR) is the discount rate that makes the Net Present Value (NPV) of all cash flows equal to zero. It's the annualised return an investment generates. If IRR > your hurdle rate, the project creates value. Enter cash flows period by period — negative for outflows, positive for inflows.

Investment Settings

Hurdle Rate / WACC

Cash Flow Period

Tax Rate on Returns

Cash Flows (Period 0 = initial investment, usually negative)

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IRR Analysis

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Internal Rate of Return (IRR)

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NPV at Hurdle Rate

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IRR

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Hurdle Rate

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IRR Spread (IRR − Hurdle)

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NPV at Hurdle Rate

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Total Cash Invested

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Total Cash Returned

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Multiple on Invested (MOIC)

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After-Tax IRR

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📋 Cash Flow Detail — PV at Hurdle Rate

🔮 IRR Scenarios

If hurdle rate rises to —%:—

If hurdle rate falls to —%:—

If all cash flows delayed 1 period:—

If inflows 10% lower (downside):—

Payback period (undiscounted):—

IRR Insights

Net Present Value (NPV) is the total value created by a project in today's dollars. Unlike IRR, NPV directly shows how much wealth a project adds. A positive NPV means the project earns more than your required return. It's generally preferred over IRR for capital allocation decisions.

Project Setup

Initial Investment (outflow)

Discount Rate (WACC/Hurdle)

Number of Periods

years

Annual Cash Inflows

Terminal Value (optional)

Terminal Value at End of Period

Terminal Growth Rate (Gordon Model)

% (if using last CF × growth)

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NPV Assessment

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Net Present Value (NPV)

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Profitability Index

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Discounted Payback

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📊 NPV Sensitivity to Discount Rate

Initial Investment

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PV of Cash Flows

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PV of Terminal Value

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Total NPV

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Profitability Index

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IRR (from cash flows)

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Undiscounted Payback

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Total Undiscounted CFs

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📋 Year-by-Year PV Breakdown

🔮 NPV Scenarios

NPV if discount rate is 5%:—

NPV if discount rate is 15%:—

NPV if discount rate is 20%:—

Break-even discount rate (IRR):—

If all CFs 20% lower:—

NPV Insights

Compare two capital projects side-by-side across IRR, NPV, MOIC, and payback period. When IRR and NPV conflict — a common problem — this tool reveals which metric to trust and why, and shows the crossover discount rate where the rankings reverse.

Shared Assumptions

Hurdle Rate / WACC

Comparison Period (years)

yrs

Project A

Project B

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Comparison Result

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Project A

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Project B

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A — IRR

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B — IRR

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A — NPV

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B — NPV

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A — MOIC

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B — MOIC

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Crossover Rate

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Preferred by NPV

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📊 NPV at Different Discount Rates (NPV Profile)

🔮 Comparison Scenarios

IRR winner:—

NPV winner at current hurdle rate:—

If projects are mutually exclusive — pick:—

Crossover rate — where ranking flips:—

Value destroyed by picking IRR over NPV winner:—

Project Comparison Insights

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