Conventional Cash-Flow IRR Calculator
Solve one initial outflow followed by non-negative end-of-period inflows.
Your result
FINANCIALEnter your values and select calculate.
On this page How it works & practical examples
How to use the Conventional Cash-Flow IRR Calculator
Solve one initial outflow followed by non-negative end-of-period inflows. This restricted sign pattern provides a unique root when at least one positive inflow exists.
The calculation
Worked example
A $1,000 outlay followed by $0 after one period and $1,210 after two gives 10% IRR per period.
Assumptions and limits
No irregular dates or multiple-sign-change projects; those can produce ambiguous roots. Search range is −99.9% to 1,000% per period, and no investment recommendation is inferred.
Common questions
Which inputs should I use?
Solve one initial outflow followed by non-negative end-of-period inflows. This restricted sign pattern provides a unique root when at least one positive inflow exists.
What does the result exclude?
No irregular dates or multiple-sign-change projects; those can produce ambiguous roots. Search range is −99.9% to 1,000% per period, and no investment recommendation is inferred.