The Capital Deck
Menu
Calculator GuideAdvanced Finance Calculators
NPV
NPV explained with examples. Calculate Net Present Value (NPV) of future cash flows using your discount rate. Evaluate project viability and compare investment alternatives. Free NPV calculator. This page walks through the calculation logic, common use cases, and how to read the output.
2 inputsnpvnet present valuediscounted cashflow
Open interactive calculatorAdvanced Finance Calculators
When to use it
  • Use it when you need a quick decision-ready view for NPV.
  • Use it when you want to understand the formula and inputs before switching to the interactive tool.
  • Use it when comparing investment, loan, or capital allocation scenarios.
Key inputs
  • Discount Rate (%)
  • Cashflows (comma separated)
Worked example
Discount future cash flows back to today to decide whether an investment clears your required return.

Example inputs

  • Discount rate: 10%
  • Initial investment: -100,000
  • Future cash flows: 25,000, 30,000, 35,000, 40,000

Formula logic

NPV = sum(CFt / (1 + discount rate)^t). A positive result means value exceeds the hurdle rate.

How to read the result

Positive NPV means the cash flows exceed the chosen hurdle rate. The result is only as reliable as the discount rate and cash-flow assumptions.

Common mistakes
  • Choosing a discount rate without linking it to risk.
  • Using optimistic cash flows without a bear case.
  • Treating a small positive NPV as a large margin of safety.
Validate the assumption
Check IRRFind the return implied by the same cash flows.Estimate paybackSee how long capital remains at risk.
Common questions
What is NPV best used for?

Calculate Net Present Value (NPV) of future cash flows using your discount rate. Evaluate project viability and compare investment alternatives. Free NPV calculator. This page explains the main inputs and output interpretation before you switch into the full calculator.

When should I use the interactive NPV tool?

Use the interactive tool when you already know your assumptions and want detailed tables, charts, or CSV export.

What inputs does the NPV use?

The formula uses the following inputs: Discount Rate (%), Cashflows (comma separated). Enter them in the calculator above to get precise results.

Is the NPV free to use?

Yes, The Capital Deck's NPV is completely free with no sign-up required.

Can I use the NPV on mobile?

Yes, the calculator works on all modern browsers on desktop and mobile devices.

Related calculators
IRR

Calculate Internal Rate of Return (IRR) for periodic cash flows — evaluate project profitability and compare investment opportunities. Free online IRR calculator.

XIRR

Calculate Extended Internal Rate of Return (XIRR) for investments with irregular cash flows and dates. Free online XIRR calculator with step-by-step results.

Payback Period

Time to recover initial outlay from cashflows.

Bond YTM

Calculate yield to maturity (YTM) for fixed-rate bonds. Analyze bond prices, coupon payments, and expected returns to maturity. Free YTM bond calculator.