Free IRR Internal Rate of Return Calculator Tool

Inputs:
Investment: This number must always be negative. It is the amount of investment required to do the project. Year 1 to 24: These are the inputs for the cash flows seen from the original investment.

Samples:
Project 1: This project shows an investment of $12 million. Cash flows are scattered from year 1 to year 7. This project creates an IRR of 13.76%. This means that the project created on average 13.76% return per year for 7 years.

Project 2: This project has an investment of $8 million. Years 1 to 9 provide $0 in cash flow then $4 million comes in years 10. Years 11 to 19 have $0 for cash flow followed by a large lump sum of $50 million in year 20. This means that the project created on average 10.70% return per year for 20 years.

Project 3: This project has an investment of $8 million. Similar to Project 2, there are years where the investment provides $0 for cash flow. This project created on average 11.51% return per year for 24 years.

Project 1			Project 2			Project 3
Investment			Investment			Investment
Year 1			Year 1			Year 1
Year 2			Year 2			Year 2
Year 3			Year 3			Year 3
Year 4			Year 4			Year 4
Year 5			Year 5			Year 5
Year 6			Year 6			Year 6
Year 7			Year 7			Year 7
Year 8			Year 8			Year 8
Year 9			Year 9			Year 9
Year 10			Year 10			Year 10
Year 11			Year 11			Year 11
Year 12			Year 12			Year 12
Year 13			Year 13			Year 13
Year 14			Year 14			Year 14
Year 15			Year 15			Year 15
Year 16			Year 16			Year 16
Year 17			Year 17			Year 17
Year 18			Year 18			Year 18
Year 19			Year 19			Year 19
Year 20			Year 20			Year 20
Year 21			Year 21			Year 21
Year 22			Year 22			Year 22
Year 23			Year 23			Year 23
Year 24			Year 24			Year 24
IRR			IRR			IRR