Reverse DCF Calculator - Find the Growth a Price Implies
Instead of forecasting growth to value a stock, start from the current price and solve for the annual growth rate the market is already pricing in.
Not financial advice. This calculator is for research and educational purposes only. Outputs are estimates based on the inputs you provide and are not buy or sell recommendations. Always do your own research and consult a licensed professional before making investment decisions.
What is a reverse DCF and how do you use it?
A reverse DCF flips a normal discounted cash flow around: instead of forecasting growth to estimate value, it takes the current stock price as given and solves for the annual growth rate the market is already pricing in. You then judge whether that implied growth looks realistic for the business.
- Inputs: current price, free cash flow per share, discount rate, forecast years, and terminal growth.
- Output: the implied annual growth rate baked into the current price.
- If the implied growth looks too high to achieve, the stock may be priced optimistically.
- It reveals the market’s assumption — it is not a forecast or a recommendation.
- Implied annual growth rate+10.2%
- Model price at solved growth$120
- Implied minus your expected growth-1.8%
- Scenario noteThe price implies a lower growth rate than the one you entered.
Stress-test the result
Change one assumption at a time. The bars show direction, not a forecast.
What it is
A reverse DCF flips a normal discounted cash flow around. Rather than guessing a growth rate to estimate value, it takes the current market price as given and solves for the single annual growth rate that would make a two-stage DCF produce that exact price. The result is the growth the market is implicitly assuming. You can then judge whether that implied growth looks reasonable for the business.
Interactive demo: how the analysis flows
Illustrative numbers only — not real data or advice.
Who it is for
- Investors who want to test whether a price already bakes in aggressive growth.
- Anyone comparing the market’s implied growth to their own expectations.
- Students and analysts who want to understand valuation from the price side.
Inputs and outputs
Inputs
- Current market price per share
- The price the share trades at today — the target the model solves to.
- Free cash flow per share or EPS
- The most recent per-share free cash flow or earnings to grow forward.
- Discount rate
- The required return used to discount future per-share cash flows.
- Forecast years
- How many years are explicitly projected before the terminal value.
- Terminal growth rate
- Perpetual growth after the forecast period (usually low).
- Your expected growth rate (optional)
- Your own growth view, used only to compare against the implied rate.
Outputs
- Implied annual growth rate
- The growth rate that makes the model price match the market price.
- Model price at solved growth
- The DCF price at the solved growth — should land very close to the input price.
- Implied minus your expected growth
- The gap between implied growth and your own expectation (if provided).
- Scenario note
- A short, neutral read on how implied growth compares to your view.
Example workflow
- Enter a current market price of $120 per share.
- Enter free cash flow per share of $5.
- Use a 10% discount rate over a 10-year forecast.
- Set a 2.5% terminal growth rate.
- Read the implied annual growth rate and compare it to what you think the business can realistically achieve.
Optionally add your own expected growth to see how far the market’s implied rate sits from your view.
Common mistakes
- Reading the implied growth as a forecast rather than what the current price assumes.
- Using a discount rate at or below the terminal growth rate, which breaks the math.
- Plugging in a noisy single-year cash flow instead of a normalized figure.
- Forgetting that a high implied growth simply means the price is demanding a lot.
- Ignoring how sensitive the implied rate is to the discount rate and cash-flow input.
The company delivered. The price still failed.
In March 2000 Cisco briefly became the most valuable company on earth at roughly $550 billion — over 100 times earnings. Run the DCF backwards and the price required Cisco to grow flawlessly for decades and become a meaningful share of the entire economy. Analysts at the time called it conservative.
Here is the cruel part: the business largely delivered. Revenue and profits are several times larger today than in 2000. The stock still fell almost 90%, and did not reclaim its 2000 high for about 21 years — because the question was never whether Cisco would grow, but whether it could grow faster than a price that had already spent the future. It could not.
Reverse the DCF before you buy: ask what growth today's price already assumes. A great company and a great investment are only the same thing at the right price.
A quality compounder hiding in plain sight
In 2016, with Apple trading near 10–12 times earnings amid fears the iPhone cycle had peaked, Berkshire began buying — eventually about $36 billion of stock. Buffett's thesis required no technology forecast: a product customers would not abandon, extraordinary returns on invested capital, and a buyback machine that increased Berkshire's ownership share every year without another dollar spent.
The stake grew to be worth more than $150 billion at its peak — the most profitable single investment in Berkshire's history, earned not by predicting gadgets but by recognizing a high-ROIC franchise priced like a metal-bender.
High returns on capital plus a shrinking share count quietly multiply your slice of the profits.
A fair price for a wonderful business
In 1988, just months after the Black Monday crash, Warren Buffett quietly began buying Coca-Cola shares. By 1989 Berkshire had spent roughly $1 billion — at about 15 times earnings, hardly a statistical bargain. Wall Street was puzzled: the "cigar-butt" student of Graham was paying up for a household brand.
Buffett was not valuing the next quarter. He was estimating decades of predictable owner earnings from a product sold in nearly every country on earth, protected by the strongest brand moat in consumer goods. Ten years later the stake was worth more than $13 billion, and Berkshire still holds it today — the annual dividends alone now return a large share of the original cost every single year.
A valuation model exists to estimate long-term cash generation — not to find the statistically cheapest ticker on the screen.
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Frequently asked questions
What is a reverse DCF?
A reverse DCF starts from a stock’s current price and solves for the growth rate that would justify it, instead of assuming a growth rate and calculating a value. It shows the growth the market is implicitly pricing in.
How does this calculator solve for growth?
It runs a two-stage per-share DCF repeatedly and uses a numerical search (bisection) to find the single annual growth rate that makes the model price match the market price.
What does a high implied growth rate mean?
It means the current price only makes sense if the business grows quickly for years. Whether that is achievable is a judgement about the company, not something the calculator decides.
Why can’t it always find a solution?
If the inputs are inconsistent — for example a price far above what any reasonable growth could support — no growth rate in the search range reproduces the price, so the tool reports no solution.
What discount rate should I use?
Many investors use a required return such as the weighted average cost of capital. A higher discount rate lowers present values, which usually raises the growth the price implies.
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