Question
How is IRR different from ROI?
ROI treats the result more like a simple total-return ratio. IRR accounts for when cash flows happen over time and solves for the annualized discount rate that makes NPV equal zero.
Financial
Use OmniCalc's IRR calculator to estimate internal rate of return from an upfront investment, annual cash flows, and a terminal value.
IRR calculator
Use an upfront investment, annual cash flows, a terminal value, and a hurdle rate to estimate IRR, NPV, profit, and equity multiple for an investment or project.
Why this result matters
A multi-year cash-flow IRR and NPV solver for projects and investments, distinct from simple ROI or average-return pages. Use the tool above to enter a few clear inputs and get a practical answer you can use right away.
This IRR calculator helps evaluate investments or projects where returns arrive over several years instead of one period. It estimates internal rate of return, net present value at a hurdle rate, net profit, and equity multiple from a multi-year cash-flow stream.
Formula and method
The calculator solves for the discount rate that makes the net present value of the initial investment and future cash flows equal zero, then compares that stream against the entered hurdle rate.
Example
If an investor wants to compare a multi-year project against a target return threshold, the calculator shows the implied IRR and whether the cash-flow stream creates positive NPV at the hurdle rate.
FAQ
Short answers to the questions people often ask before or after using the tool.
Question
ROI treats the result more like a simple total-return ratio. IRR accounts for when cash flows happen over time and solves for the annualized discount rate that makes NPV equal zero.
Question
The hurdle rate gives you a target return benchmark so the calculator can also show NPV at that required return level.
Question
Some cash-flow patterns never cross from negative present value to positive present value across the tested range, so there may be no usable IRR for that stream.
Related calculators
If the next question is close to this one, these are the best pages to open next.
Financial
Use OmniCalc's average return calculator to compare simple average return with compound average growth across a multi-year return sequence.
Financial
Use OmniCalc's real estate calculator to estimate cash flow, cap rate, appreciation, exit proceeds, and projected profit for a property investment.
Financial
Use OmniCalc's rental property calculator to estimate monthly cash flow, cap rate, DSCR, and cash-on-cash return for a financed rental investment.
Financial
Use OmniCalc's investment calculator to estimate how an initial investment, recurring monthly contributions, expected return, and annual fees shape long-term portfolio value.