DCF Intrinsic Value Calculator With India WACC and Reverse DCF

A discounted cash flow model estimates what a business is worth by projecting the cash it will generate for its owners in future and discounting that cash back to today’s value.

The idea is that a company is worth the sum of all future cash it can hand shareholders, adjusted for the fact that money today is worth more than money tomorrow. In stock valuation, the result is called intrinsic value or fair value, and you compare it to the market price to decide whether a stock is cheap or expensive.

A two-stage model reflects how businesses actually grow. In the first stage, the growth stage, a company expands faster, perhaps 10 to 20% a year.

No company can sustain that forever, so the second stage, the terminal stage, applies a much lower perpetual growth rate that no faster than the overall economy. Splitting the forecast this way is more realistic than assuming a single constant rate, and it is the standard approach used by investment professionals for stock valuation.

Build it rather than guessing. Start with the ten-year Indian government security yield as your risk-free rate, about 6.7 to 7% in 2026.

Add beta times the India equity risk premium, roughly 7 to 8.5% per Damodaran’s data, to get the cost of equity through the capital asset pricing model. Then blend that with the after-tax cost of debt, weighted by how much of the company’s capital is equity versus debt at market values. For most Indian listed companies this produces a WACC between 11 and 14%.

Free cash flow to the firm is the cash a business generates from operations after paying for capital expenditure and increases in working capital, but before financing costs. It is the genuine cash available to all providers of capital.

Use a normalised figure that reflects a typical year, not one distorted by a one-off event. The most common DCF error is forgetting to subtract reinvestment needs, which overstates the cash and inflates the valuation, so be honest about capex and working capital.

Terminal value captures all the cash flows beyond your explicit forecast, compressed into one number using the perpetuity formula. For most companies it makes up 60 to 75% of the total valuation, because a business is expected to operate for far longer than any ten-year forecast.

That is why it is dangerous: a huge share of your answer rests on a single assumption about growth into eternity. A small change in the terminal growth rate can swing the whole valuation, so keep that rate conservative and watch what share of value it represents.

The sum of your discounted cash flows and terminal value gives enterprise value, the worth of the entire business regardless of how it is financed. To reach the value that belongs to shareholders, subtract net debt, which is total debt minus cash.

That gives equity value. Divide equity value by the number of shares outstanding and you have intrinsic value per share, which you compare to the market price. Confusing enterprise value with equity value, or forgetting the net-debt adjustment, is a classic and costly retail mistake.

A reverse DCF flips the usual model on its head. Instead of assuming a growth rate to calculate a fair value, it takes the current market price as given and solves for the growth rate that price implies.

This is powerful because it removes the temptation to fabricate a growth number that justifies a decision you have already made. You simply ask whether the growth the market is assuming is realistic for the business. Professional analysts often frame their entire thesis this way, comparing the implied growth to what they believe is achievable.

A margin of safety is the gap between your estimate of intrinsic value and the price you pay. Because every DCF contains assumptions that may prove wrong, you protect yourself by buying only when the price sits meaningfully below your calculated value, typically 20 to 30% below.

That cushion absorbs the errors in your growth, margin and discount-rate estimates. The concept, central to value investing, transforms a theoretical valuation into a disciplined buying rule, and this calculator flags the margin of safety whenever you enter a market price.

Beta measures how much a stock moves relative to the overall market, capturing its systematic risk. A beta of 1 means the stock moves in line with the Nifty, above 1 means it is more volatile, below 1 less.

In the capital asset pricing model, beta multiplies the equity risk premium to reflect how risky a particular stock is. You can find a stock’s beta on financial data portals, usually calculated over five years of monthly returns against a market index. For a rough valuation, a beta near 1 is a reasonable starting point for a broad, stable company. Remember that beta reflects past volatility, which may not predict the future, so treat it as one input to sanity-check rather than a precise measurement, and lean toward a slightly higher beta when a company carries heavy debt or operates in a cyclical industry.

Never. If the terminal growth rate equals or exceeds the discount rate, the perpetuity formula breaks down and produces an infinite or negative value, which is meaningless.

Mathematically the denominator, discount rate minus terminal growth, must stay positive. Practically, terminal growth should sit well below the discount rate and at or under long-run nominal GDP, because no company can grow faster than the whole economy forever. This calculator blocks any input where terminal growth meets or exceeds the discount rate and asks you to adjust.

Very. A 1.5% change in the discount rate can move enterprise value by 15 to 25% for a typical model, and a half-percent change in terminal growth can swing value by 10 to 20%.

This extreme sensitivity is why a single point estimate is misleading and why sensitivity analysis is essential rather than optional. The calculator produces a grid showing how intrinsic value shifts as you vary growth and discount rate together, so you see a range of plausible values rather than trusting one figure that could be badly off with a small tweak.

It is difficult and often unreliable. DCF depends on positive, predictable free cash flow, so early-stage or loss-making companies that burn cash are poor candidates.

For such firms the terminal value would carry almost the entire valuation, resting on heroic assumptions about a distant, profitable future. In those cases analysts lean on other methods, such as revenue multiples or comparable transactions. DCF works best for mature, cash-generating businesses with a track record you can extrapolate with some confidence, which is most established listed companies. For a young company you believe in, a useful compromise is to model the years until it turns cash-positive separately, then apply the two-stage logic from that point, while treating the whole exercise as far more uncertain than a mature-company valuation.

Between five and ten years is standard. A shorter horizon leans more heavily on the terminal value, while a longer one asks you to forecast individual years further into an uncertain future.

Ten years is a common choice because it captures a full growth phase for most companies before they mature. The right length depends on how predictable the business is: stable, established firms justify a longer explicit forecast, while volatile or fast-changing companies are better modelled over a shorter window with more scenario testing. Whatever horizon you choose, the sensitivity grid this calculator produces matters more than the single headline number, because it shows you how much your answer moves when your two most uncertain inputs, growth and the discount rate, shift by a little.

The weighted average cost of capital blends the cost of equity and the cost of debt in proportion to how the company is financed. Those proportions must use current market values, not the book values on the balance sheet, because the discount rate reflects what investors require today.

Using market capitalisation for equity and market value of debt gives a rate that matches the company’s real, present cost of raising money. Using book values instead distorts the weights and produces a WACC that does not reflect current financing costs.

A price-to-earnings ratio is a relative measure: it tells you how the market prices this stock compared to others or to its own history, but not what the business is intrinsically worth. DCF is an absolute measure that estimates fair value directly from the cash the company will generate, independent of what the market thinks of similar stocks.

The two complement each other. DCF gives you a value anchored in fundamentals, while the P/E ratio offers a quick sanity check and a way to compare across companies. Serious analysis usually uses both. A common workflow is to run the DCF for an absolute anchor, then look at the P/E and other multiples to see whether the market agrees, and to investigate any large gap between the two rather than assuming your model must be right.

No, it takes the inputs you provide so you stay in full control of every assumption. You enter the free cash flow, growth rate, discount rate and share count yourself, which is deliberate: DCF is only as good as its inputs, and understanding each one is the whole point.

Financial figures such as free cash flow, net debt and shares outstanding come from a company’s annual report or financial statements, and benchmark rates like the G-Sec yield are published by the Reserve Bank of India. Entering them manually forces you to think about each number rather than trusting a black box. This is a feature, not a limitation: the investors who lose money with DCF are usually the ones who let a tool fill in assumptions they never examined, then trusted the output because it looked precise. A valuation you built yourself, input by input, is one you actually understand and can defend.

Yes, widely. In India, discounted cash flow is the primary income-approach method for company valuation under the valuation standards followed by registered valuers, and it is used for merger and acquisition pricing, private company valuation, fundraising, and regulatory purposes such as share pricing under tax and foreign investment rules.

The same two-stage logic applies whether you are valuing a listed share, an unlisted startup or an entire business being acquired. Private company valuations add adjustments for illiquidity and higher risk, but the core method is identical to what this calculator does. In fact, learning to value a listed company with a transparent tool like this one builds exactly the intuition you need to understand a professional valuation report, whether you are assessing an acquisition, negotiating a fundraise, or simply trying to judge whether the shares in your own portfolio are worth holding.