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Calculate IRR and MIRR for investment projects with multiple cash flows. Evaluate project profitability and compare investment opportunities.
finance
Internal Rate of Return Calculator
Calculate IRR and MIRR for investment projects with multiple cash flows. Evaluate project profitability and compare investment opportunities.
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What is Internal Rate of Return?
Internal Rate of Return (IRR) is the discount rate that makes the net present value (NPV) of all cash flows from a project equal to zero. It represents the expected annualized rate of return for an investment. IRR is widely used in capital budgeting to compare the profitability of different investments. The Modified IRR (MIRR) addresses some limitations of traditional IRR by assuming reinvestment at a different rate.
How to use
Enter your initial investment, select a cash flow pattern (even, growing, or custom), specify the number of years and annual cash flows. You can also add terminal value and specify reinvestment/financing rates for MIRR calculation. The calculator displays IRR, MIRR, NPV, and provides investment recommendations.
Frequently Asked Questions
What is the Internal Rate of Return (IRR)?
The Internal Rate of Return (IRR) is a financial metric used to estimate the profitability of potential investments. It is the discount rate that makes the Net Present Value (NPV) of all cash flows (both incoming and outgoing) equal to zero.
How do I interpret the calculated IRR?
Generally, a higher IRR indicates a more desirable investment. If the calculated IRR is greater than your required rate of return (or cost of capital), the investment is considered profitable.
What is the difference between IRR and ROI?
ROI (Return on Investment) measures the total growth of an investment from start to finish as a percentage, while IRR measures the annualized growth rate and accounts for the timing of when money is received or paid.
Can I use this calculator for monthly cash flows?
Yes, but the result will correspond to the period of your cash flows. If you input monthly data, the resulting IRR will be a monthly rate. You would need to annualize it manually for comparison with yearly rates.
Why does the calculator say 'No Solution Found'?
This typically occurs when all cash flows are positive or all are negative. Mathematically, IRR requires at least one negative cash flow (investment) and one positive cash flow (return) to calculate a rate.
What are the limitations of using IRR?
IRR assumes that all positive cash flows are reinvested at the same rate as the IRR, which may not be realistic. It also struggles with unconventional cash flow patterns that have multiple sign changes, potentially resulting in multiple IRRs.
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