NPV & IRR Calculator
Enter the initial investment and each period's cash flow to get the net present value at your discount rate and the internal rate of return.
Enter an initial investment and at least one cash flow to see NPV and IRR.
NPV discounts every cash flow to today; IRR is the rate where NPV = 0. Educational tool — not investment advice.
NPV vs IRR
NPV discounts every cash flow to today and sums them; positive means the project adds value at that rate. IRR is the discount rate that makes NPV exactly zero.
NPV = Σ CFₜ / (1 + r)ᵗ IRR: NPV = 0
When cash flows change sign more than once there can be multiple IRRs — defer to NPV. See NPV and IRR.