Discounted Cash Flow Calculator (DCF)

Estimate a company's fair value per share using either free cash flow to the firm or an earnings-per-share valuation path. This page also keeps the formula, examples, FAQs, and references close by so you can check the result with confidence.

What This Discounted Cash Flow Calculator (DCF) Helps You Do

DCF projects future cash flows, discounts them back to today, and compares the result with the market price. Review the formula and examples below if you want to see how the result is derived.

This page is meant to give you a fast answer, but it also helps you double-check the math before you make a decision. Start with the inputs that you already know, run the calculation, and then compare the output with the formula, examples, and FAQs below so you can see whether the answer fits the situation you are modeling.

If the result looks off, the usual causes are a unit mismatch, a missing decimal, the wrong scenario, or a value that needs to be entered as a rate instead of a total. The notes on this page are designed to make those checks easy without forcing you to leave the calculator and search for context elsewhere.

  • Use the calculator first for a quick estimate.
  • Use the formula to understand how the result is built.
  • Use the examples to compare common use cases.
  • Use the references when the answer depends on a standard or assumption.

Common Checks

A quick result is useful, but the best result is one that still makes sense when you look at it a second time. If you are comparing scenarios, try changing one input at a time so you can see which variable has the biggest impact on the final answer. That makes it much easier to spot whether the calculation matches your expectations.

It also helps to keep the context of the problem in mind. A calculator can tell you the math, but you still need to decide whether the input represents a total, a rate, an average, or a category-specific assumption. When in doubt, start with a simple example from the page and scale up from there.

  • Check that every unit matches the rest of the problem.
  • Keep rates, totals, and averages separate.
  • Adjust one variable at a time when testing scenarios.
  • Use the smallest realistic input first, then scale upward.

Scenario Planning

This calculator is especially useful when you want a quick answer before you commit time, money, or effort. Try one baseline input set, then change a single number and compare the result so you can see how sensitive the answer is to that variable.

That makes the page useful for more than just arithmetic. It becomes a small decision aid that helps you compare options, test assumptions, and explain the final number with confidence when you need to share it with someone else.

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Result

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Quick Answer: DCF projects future cash flows, discounts them back to today, and compares the result with the market price. Review the formula and examples below if you want to see how the result is derived.

How to Calculate Discounted Cash Flow Calculator (DCF)

  1. Choose the valuation method: Use FCFF for company cash flow analysis or EPS for a per-share earnings approach.
  2. Enter the forecast assumptions: Provide the forecast cash flows, WACC, growth rates, and capital structure inputs.
  3. Compare with market price: The calculator shows whether the stock appears overvalued or undervalued.

Discounted Cash Flow Calculator (DCF) Formula

DCF value = present value of forecast cash flows + terminal value, then convert to fair value per share
Variable Meaning Unit
WACC Discount rate used to bring future cash flows back to present value %
Terminal growth Long-run growth used to estimate value beyond the forecast horizon %
Shares outstanding Number of shares used to convert equity value into per-share value shares

Worked Examples

USA - FCFF valuation
  • FCFF year 1: $100,000
  • FCFF year 5: $140,000
  • WACC: 10%
  • Perpetual growth: 3%
  • Shares outstanding: 100,000

Result: fair value per share

The forecast cash flow stream is converted into equity value and then split per share.

UK - EPS valuation
  • EPS: £50
  • Discount rate: 12%
  • Growth rate: 8%
  • Growth years: 5
  • Terminal years: 5

Result: intrinsic value per share

The earnings stream is discounted in two phases to estimate fair value per share.

EU - Price comparison
  • Market share price: €5
  • DCF value: €10.74

Result: undervalued

If fair value is above market price, the stock is trading below the model estimate.

How to Interpret Your Results

Range Meaning Action
Below market price The model implies the stock may be undervalued Review the growth assumptions and compare them with peers.
Near market price The model and market are broadly aligned Check whether the assumptions are conservative or aggressive.
Above market price The model implies the stock may be overvalued Revisit WACC, terminal growth, and the forecast path.

Frequently Asked Questions

Free cash flow to the firm is cash available to all capital providers after operating and investment needs.

It is the value of cash flows beyond the explicit forecast horizon.

The comparison helps show whether the stock is priced above or below the model estimate.
Planning note: DCF valuation is highly sensitive to growth and discount-rate assumptions.

References

Last reviewed: March 2026