Investment return calculator

Measure the result of an investment with regular monthly cash flows. The calculator separates contributions from profit and estimates an annualized return.

Enter investment results

Monthly contributions are assumed to be made at the end of each month in equal amounts.

Annualized return

7.23%

Total invested

$70,000.00

Profit or loss

$36,639.00

Return on invested money

52.3%

The annualized result depends on the assumed timing of contributions and may differ from a broker statement.

How annualized return is solved

The calculator finds the monthly return that turns the initial amount and all end-of-month contributions into the final portfolio value, then converts that rate to an effective annual return.