Present Value Calculator
See what a future sum of money is really worth today once you account for the return you could earn in the meantime.
Lump sums and payments
Value a single future amount, a stream of regular future payments, or both together.
The rate decides everything
Your discount rate is an assumption — change it to see how sensitive the answer is.
What is present value?
What tomorrow's money is worth today
Present value is the worth in today's money of an amount you will receive in the future, given a rate of return you could otherwise earn. It is the mirror image of future value: instead of compounding money forward, you discount it backward. Because money has time value — a sum in hand today can be invested and grow — a payment due years from now is worth less than the same number on paper today. As references such as Investopedia explain, discounting a future cash flow at the right rate tells you the most you should rationally pay for it now.
The calculator discounts two things: a future lump sum and a stream of regular future payments.
PV = FV ÷ (1 + r)ⁿ + PMT × [1 − (1 + r)⁻ⁿ] ÷ rHere FV is the future lump sum, PMT is each recurring payment, r is the periodic rate (the annual rate divided by the number of periods per year), and n is the total number of periods. The first term discounts the lump sum back to today; the second is the present value of an ordinary annuity — every future payment discounted from the date it arrives back to now. Choosing monthly, quarterly, or annual sets both how often the rate compounds and how often a payment is received.
Someone offers you 50,000 in ten years. You could otherwise earn 5% a year, so you discount at 5% with annual compounding.
Find the discount factor
(1.05)^10 ≈ 1.6289 — money grows by about 63% over ten years at 5%.Discount the future amount
50,000 ÷ 1.6289 ≈ 30,696.Read the result
The future 50,000 is worth about 30,696 today.Interpret it
Roughly 19,304 of the headline figure is simply the return you forgo by waiting — paying more than 30,696 today would leave you worse off than investing at 5%.
Three levers move the present value, and the discount rate is the sharpest of them.
A higher rate shrinks it
The more you could earn elsewhere, the less a fixed future sum is worth today.
Time deepens the discount
The further away the money, the more periods of discounting compress its value.
Payments add up
A stream of regular payments is the sum of many small present values, each discounted from its own date.
The relationship is the reverse of compounding: where future value curves upward with time, present value curves downward. At a 5% rate a sum due in 30 years is worth less than a quarter of its face value today, which is why long-dated promises and pension-style payments are so sensitive to the rate you choose.
The present value is the most you should rationally pay today to receive the future money, assuming you could earn the discount rate elsewhere. The nominal total shows the undiscounted sum of everything you will receive, and the discount applied is the gap between the two — the value the waiting costs you. Comparing the present value with a price on the table tells you whether a deal is worth taking: pay less than the present value and you come out ahead; pay more and you would do better investing at your assumed rate. Because the answer hinges on the rate, rerun it with a higher and a lower rate to see the range rather than trusting a single figure.
The arithmetic is exact; the assumptions are not.
A model, not a market price
This calculator assumes a single, constant discount rate and payments made at the end of each period. Real cash flows carry risk, may not arrive on time or in full, and the right rate depends on that risk — a safe government payment and a speculative one should not be discounted at the same rate. It also ignores inflation and taxes, which further change what the money is worth or what you keep. Use it for informational purposes to compare options and understand discounting, and consult a qualified financial advisor before relying on the figure for a real decision.