IRR Calculator
Calculate the Internal Rate of Return of an investment with irregular cash flows.
What is IRR?
IRR is the annualized rate of return that makes the net present value of all cash flows equal to zero. It accounts for the timing of cash flows, unlike simple ROI.
What is IRR Calculator?
Internal Rate of Return (IRR) is the annualized return rate at which the net present value of all cash flows from an investment equals zero. An IRR calculator finds this rate for projects, businesses, or investments.
IRR is widely used to evaluate whether a project or investment generates enough return to justify the capital.
How does the IRR Calculator work?
The calculator iteratively solves for the IRR that makes the sum of discounted cash flows zero.
Cash flows are typically annual: negative for investments, positive for returns.
How to use the IRR Calculator?
- Enter the initial investment as a negative cash flow.
- Enter the expected cash flows for each year.
- The calculator shows the IRR percentage.
Example
Try the calculator with your own numbers
- Enter your values in the input fields above.
- Adjust the values to match your situation.
- The result updates instantly as you change the inputs.
Benefits of using the IRR Calculator
- Evaluate projects and business investments.
- Compare opportunities with different cash flow patterns.
- Decide if a return beats your required rate.
Who should use the IRR Calculator?
- Individuals planning loans, investments, or retirement savings.
- Salaried employees estimating taxes, EMIs, and take-home pay.
- Small business owners tracking costs, margins, and cash flow.
- Students learning personal finance and investment concepts.
Tips for getting the most out of the IRR Calculator
- Use realistic return rates — past performance does not guarantee future returns.
- Re-run the calculation whenever your income, expenses, or goals change.
- Compare a few scenarios (conservative, moderate, aggressive) before making a decision.
Frequently Asked Questions
What is a good IRR?
A good IRR exceeds your cost of capital or required return. For most investors, 12-15% is considered attractive.
What is the difference between IRR and XIRR?
IRR assumes cash flows at regular intervals (usually yearly). XIRR handles cash flows at any dates, making it more accurate for real investments.
Planning your finances is easier when you can see the numbers clearly. Use this calculator regularly to stay on top of your goals and make informed decisions.
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