Perpetuity Calculator
Calculate present value of perpetual cash flows
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Perpetuity Calculator is built for calculating present value of perpetual cash flows — fast, free, and private. Fill in Payment per Period ($), Discount Rate (%) and Growth Rate (%) (0 for flat) on Perpetuity and read your answer immediately. Perpetuity prints the result and its working. Perpetuity works for one check or many. Nothing typed into Perpetuity leaves your device or the tab. Looking for perpetuity calculator or present value perpetuity? Perpetuity covers both. Keep Perpetuity bookmarked for next time. Try Perpetuity now and keep it handy.
What does the Perpetuity Calculator do?
Perpetuity Calculator works out the present perpetual cash from the Payment per Period, Discount Rate, and Growth Rate, using Finance conventions. With the defaults, perpetuity calculator gives a result of PV: $12500.00.
- Inputs: Payment per Period, Discount Rate, and Growth Rate.
- Output: the present perpetual cash, followed by the terms it was built from.
- Method: the standard Finance method for the present perpetual cash, run locally in your browser.
Quick answer
perpetuity calculator returns a result of PV: $12500.00 with the default inputs (payment per period of 1,000, discount rate of 8, growth rate of 0).
How does the Perpetuity Calculator work?
Perpetuity Calculator computes the present perpetual cash directly from your inputs — the Payment per Period, Discount Rate, and Growth Rate feed the formula. The present perpetual cash is calculated in the browser, so the inputs never leave the device.
How it works
A figure from Perpetuity Calculator is meant to be reproduced, not just read — the Payment per Period, Discount Rate, and Growth Rate, the Finance formula and the step list all sit on one screen.
How to use it
- Payment per Period — the value feeding the perpetuity formula directly — match it to your scenario first.
- Discount Rate — a core perpetuity input applied directly — keep its units consistent with the label.
- Growth Rate — one of the values perpetuity builds from; the output reflects exactly what you type.
- The perpetuity output separates the headline answer from the supporting figures, so you can read the output without losing the context around it.
- Test the upper end of the plausible range on Perpetuity Calculator first; if the result stops making sense there, the Payment per Period, Discount Rate, and Growth Rate need another look.
The formula behind the result
Change one input in the perpetuity form and the formula re-runs from the start — there is no cached intermediate value that could carry a stale figure into the result.
Worked example: with payment per period of 1,000, discount rate of 8, growth rate of 0, this perpetuity calculation returns PV: $12500.00. The same run reports Multiple: 12.50x.
The steps it follows:
- Formula: PV = PMT/(r-g)
- PV = $12500.00
Understanding the result
A output from Perpetuity Calculator is meaningful only with its units attached; the same digits can describe a monthly or a yearly figure.
Where it helps
Perpetuity Calculator suits reviewing a plan that has changed, testing a case slightly worse than expected, and confirming a total before you commit — the kind of question that arrives once a week and deserves a defensible number.
Common mistakes
Retyping values from another tool without checking units is where most perpetuity errors start; the page reads the digits, not the intent behind them.
Tip: Perpetuity Calculator returns PV: $12500.00 at its defaults; double the Payment per Period ($) and it returns PV: $25000.00.
Assumptions and limitations
The model behind Perpetuity Calculator covers the standard case; special cases, edge values, or jurisdiction-specific rules may need manual adjustment.
Why use this calculator
Because the same Perpetuity Calculator serves a first-timer and a reviewer — one reads the output, the other reads the derivation, and both are on one screen.
Frequently Asked Questions
What does perpetuity calculator compute?
Set the Payment per Period, Discount Rate, and Growth Rate on Perpetuity Calculator to your own case and the output re-derives from scratch — no stored state and no cached figure from an earlier run. Because the Finance conventions are stated rather than assumed, Perpetuity Calculator removes the guesswork about which method produced the present perpetual cash.
Which method produces the present perpetual cash?
The first steps are formula: pv = pmt/(r-g), then pv = $12500.00. Where the Finance method allows more than one common convention, Perpetuity Calculator uses the one named on the label and computes the output with it from the first term to the last.
What inputs does the Perpetuity Calculator ask for?
Perpetuity Calculator needs no setup: no account, no upload.
How sensitive is the result to the Payment per Period ($)?
At the defaults Perpetuity Calculator returns PV: $12500.00; doubling Payment per Period ($) to 2,000 moves it to PV: $25000.00.
How should the result from this page’s calculator be read?
The main number the perpetuity calculator returns is the present perpetual cash for your exact inputs. Very large or very small inputs in Perpetuity Calculator can push the output beyond what is practically meaningful — sanity-check extreme values before relying on them.
Where does the Perpetuity Calculator fit in day-to-day work?
Everyday work with Perpetuity Calculator looks like reviewing a plan that has changed, testing a case slightly worse than expected, and confirming a total before you commit, and the page is written for exactly that kind of one-off question. Bookmark the perpetuity page with your usual numbers in the URL and every later check starts from a real case instead of the defaults.
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