NPV Calculator
Net Present Value of any cash-flow stream.
Amortization schedule
| # | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
Showing first 12 of months.
Growth over time
| Year | Invested | Value |
|---|---|---|
Introduction
NPV Calculator — Net Present Value of any cash-flow stream. Enter Discount rate (%), Cash flows (comma separated, t=0 first) to get an instant, accurate result.
Formula
NPV = Σ (CFₜ / (1+r)ᵗ) for t = 0, 1, 2, … — each cash flow discounted back to present value at rate r.
Step-by-step
- Enter the Discount rate (%).
- Enter the Cash flows (comma separated, t=0 first).
- Click Calculate to see your result instantly.
Real-world example
Example: With Discount rate (%) = 10, Cash flows (comma separated, t=0 first) = -10000, 3000, 4200, 6800, the NPV Calculator gives NPV: 1307.2878.
Frequently Asked Questions
What does a positive NPV mean?
The projected returns, discounted to today's value, exceed the initial investment — generally a good sign for the investment.
Where does the first cash flow go?
The first number you enter is treated as t=0 (usually a negative initial investment), with each following number one period later.
What inputs does the NPV Calculator need?
You'll need to provide: Discount rate (%), Cash flows (comma separated, t=0 first). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the NPV Calculator?
The NPV Calculator applies the formula exactly as calculated — NPV = Σ (CFₜ / (1+r)ᵗ) for t = 0, 1, 2, … — each cash flow discounted back to present value at rate r. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Are these results guaranteed?
No. The NPV Calculator gives an estimate based on the numbers you enter and standard financial formulas — actual rates, fees, taxes, and terms vary by lender, institution, and jurisdiction, and can change over time. This is not financial advice; consult a qualified financial professional for decisions specific to your situation.
Is the NPV Calculator free to use?
Yes, the NPV Calculator is completely free, requires no signup, and runs instantly in your browser.
About the NPV Calculator
The NPV Calculator uses a real, verifiable formula — NPV = Σ (CFₜ / (1+r)ᵗ) for t = 0, 1, 2, … — each cash flow discounted back to present value at rate r. — so results are accurate every time, not an approximation.