Free tool
Investment return calculator
Check whether an investment (machine, vehicle, outlet, project…) creates value. Simplified pre-tax calculation with constant annual cash flows.
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The formulas used
Annual cash flow = Revenue − Costs (pre-tax, excluding depreciation).
NPV (net present value) = sum of discounted cash flows − investment. A positive NPV means the investment returns more than the required rate.
IRR (internal rate of return) = the rate at which NPV equals zero.
Payback period = the time needed for cumulative cash flows to repay the investment.