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NPV Calculator

Net present value of a project or investment

Net Present Value (NPV) Calculator

Discount Rate (%)
Cash Flows (one per line, first = initial investment)

Net Present Value (NPV) sums all future cash flows discounted to today's value minus the initial investment. Positive NPV means the investment creates more value than it costs.

  1. 1NPV = Σ Cₜ/(1+r)ᵗ − Initial investment
  2. 2r = required discount rate (cost of capital)
  3. 3NPV > 0: invest; NPV < 0: reject
  4. 4Higher discount rate → lower NPV
−$50k initial, $15k/yr for 5yr, 10% discount rate=NPV = +$6,862 → invest
Discount rateNPV
5%$14,994
10%$6,862
15%$259
20%−$5,148
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