The Internal Rate of Return (IRR) will take you to the bottom line of an investment. It tells you the rate of return on a complicated series of cash flows. Measure this against what you can earn in a risk-free investment to determine the desirability of this investment.
In technical terms, IRR is the discount rate that sets all cash inflows and outflows to 0. More weight is given to the earlier cash flow than to the later cash flow because of the time value of money.
This calculator supports irregular length periods and exact date data entry for the cash flows. There is also no need to manually enter every cash flow. The calculater can optionally be set so that the prior entered value is used as the default value for the next perod. This makes data entry a snap!
The IRR calculator is a main stay for financial planners, investors and accountants.