Calculate the Internal Rate of Return (IRR) for your investment projects. IRR is the discount rate that makes the Net Present Value (NPV) of all cash flows equal to zero, helping you evaluate the profitability of potential investments.
Enter your cash flows separated by commas. The first value is typically the initial investment (negative), followed by subsequent returns (positive).
Optionally specify custom time periods. Leave empty for consecutive periods starting from 0.
Internal Rate of Return (IRR):0.00%
NPV at IRR:$0.00
How to Use This IRR Calculator
Enter your cash flows separated by commas in the first field
The first cash flow is typically your initial investment (negative value)
Subsequent cash flows are your expected returns (usually positive)
Optionally, specify custom time periods if they're not consecutive
Click "Calculate IRR" to see your results
Understanding IRR
The Internal Rate of Return (IRR) is a critical metric in capital budgeting and investment analysis. It represents the discount rate at which the present value of future cash flows equals the initial investment, making the NPV zero.
Interpreting Your Results
Higher IRR: Generally indicates a more profitable investment
Compare to Required Return: If IRR exceeds your required rate of return, the investment may be worthwhile
NPV at IRR: Should be very close to zero (within rounding errors)
Multiple IRRs: Complex cash flow patterns may have multiple valid IRRs
Example Calculation
For an initial investment of $10,000 with returns of $3,000, $4,000, $5,000, and $6,000 over four years:
Cash Flows: -10000, 3000, 4000, 5000, 6000
The calculator will determine the rate that makes NPV = 0
This rate represents your investment's annualized return
Important Notes
IRR assumes reinvestment of interim cash flows at the IRR rate
For projects with unconventional cash flows, consider using MIRR (Modified IRR)
IRR should be used alongside other metrics like NPV and payback period
This calculator uses Newton-Raphson method for accurate IRR computation