How to Calculate Intrinsic Value Like Warren Buffett
Buffett defines intrinsic value as the discounted value of the cash a business will produce over its life. Here's how to actually compute it — the formula, each input, and where beginners go wrong.
Quick answer
Warren Buffett calculates intrinsic value with a discounted cash flow (DCF) model: project a company's future free cash flow, discount each year back to today at a required rate of return (often 8–10%), add a terminal value, and divide by shares outstanding. Then buy only below that figure, with a margin of safety.
Warren Buffett has given the same definition of intrinsic value for decades: it is the discounted value of the cash that can be taken out of a business during its remaining life. Everything else — P/E ratios, chart patterns, analyst targets — is a shortcut or a distraction. This post walks through how to compute that number yourself using a discounted cash flow (DCF) model, the same engine behind Valuo's Buffett analysis.
What intrinsic value actually means
“Intrinsic value can be defined simply: it is the discounted value of the cash that can be taken out of a business during its remaining life.”
— Warren Buffett, Berkshire Hathaway Owner's Manual
Two ideas are doing the work here. First, a business is worth the cash it produces, not its accounting earnings and not its share price. Second, a dollar in ten years is worth less than a dollar today, so future cash has to be discounted back to the present. DCF is just those two ideas turned into arithmetic.
The DCF formula
Intrinsic value (DCF)
IV = Σ FCFₜ ÷ (1 + r)ᵗ + Terminal Value ÷ (1 + r)ᴺ
In words: project the company's free cash flow for each year, discount each year back to today using a discount rate r, add a terminal value for everything beyond the projection window, and sum it all up. Divide by shares outstanding and you have intrinsic value per share — the number you compare to the current price.
The four inputs, and how to choose them
1. Free cash flow (the starting point)
Free cash flow (FCF) is operating cash flow minus capital expenditures — the cash truly left over for owners. Use a normalized figure, not a single lucky year: one blockbuster or one write-off can distort a base year badly. A common fix is to use the median FCF margin over five years applied to current revenue, which is exactly how Valuo normalizes its base.
2. Growth rate (the biggest lever)
Estimate how fast FCF grows over the projection window (typically 10 years). Anchor it to history and reason, not hope. A durable, mature business might compound 4–8% a year; assuming 20%+ for a decade is how DCFs get abused. When in doubt, be conservative — the margin of safety, below, is your protection against being wrong.
Run this on a real stock — free
Skip the spreadsheet. Valuo computes this for any US ticker: intrinsic value, buy price, and margin of safety.
Analyze a stock free3. Discount rate (your required return)
The discount rate reflects the return you require and the risk of the cash flows. Buffett famously anchors to the long-term Treasury yield as a risk-free baseline and demands more for a business than for a bond. Many practitioners use 8–10%. A higher rate lowers intrinsic value — riskier or less predictable businesses deserve a higher r.
4. Terminal value (the long tail)
Beyond the projection window, a terminal value captures the rest of the company's life, usually via a modest perpetual growth rate (often near long-run GDP, ~2–3%). Because it's discounted back over many years and can dominate the total, keep its growth assumption humble.
The margin of safety is not optional
Every input above is an estimate, so the output is a range, not a fact. Graham's rule — which Buffett calls the three most important words in investing — is to buy only well below your intrinsic-value estimate. A 25–50% discount to intrinsic value absorbs the error in your assumptions.
A worked example (the shape of it)
Suppose a company generates $10 of normalized FCF per share, you project 6% growth for 10 years, discount at 9%, and apply a 2.5% terminal growth rate. Discounting each year's cash flow and the terminal value back to today might yield an intrinsic value around $170 per share. If the stock trades at $120, that's roughly a 30% margin of safety; at $190, the market is already pricing in more than your assumptions justify.
The exact figure matters less than the discipline: you now have a price anchored to cash, not to sentiment. That is the entire point of the exercise.
Skip the spreadsheet
Valuo runs this DCF automatically for any US ticker, with a normalized FCF base and a transparent margin of safety — then cross-checks it against three other frameworks (Graham, Lynch, Rule #1). See a live example on AAPL or read the exact methodology.
Frequently asked
- What is intrinsic value in investing?
- Intrinsic value is what a business is truly worth based on the cash it will generate over its life, discounted to today's dollars — as opposed to its current market price. Warren Buffett estimates it with a discounted cash flow (DCF) model.
- What discount rate did Warren Buffett use?
- Buffett anchors to the long-term Treasury yield as a risk-free baseline and requires a higher return for a business than for a government bond. In practice many investors use a discount rate of roughly 8–10% for a stable company.
- Why is a margin of safety important in a DCF?
- Because every DCF input is an estimate, the output is a range rather than a precise number. Buying well below your intrinsic-value estimate — a 25–50% margin of safety — protects you when your assumptions turn out to be too optimistic.
Apply it to a stock
Keep reading
The Graham Number Formula, Explained
What the Graham Number is, the formula √(22.5 × EPS × book value per share), where the 22.5 comes from, and how Benjamin Graham used it to find deep-value stocks.
The PEGY Ratio: Peter Lynch's Growth-at-a-Reasonable-Price Metric
What the PEGY ratio is, how it improves on the PEG ratio by adding dividend yield, the formula, and how Peter Lynch used it to find reasonably priced growth stocks.
Educational Use Only · Not Financial Advice
Analysis, scores, valuations, and buy zones are derived from publicly documented investor frameworks (Buffett, Lynch, Benjamin Graham, Phil Town) for learning purposes only. They are not recommendations from licensed financial advisors. Past performance does not guarantee future results. Prices may be delayed up to 15 minutes. Always conduct your own research before making any investment decisions.