Free Cash Flow Calculator

FCFF (Free Cash Flow to the Firm) and FCFE (Free Cash Flow to Equity) answer different questions about a company's cash generation. Understanding which to use — and when — is essential for building accurate valuation models.

FCFF represents cash available to all capital providers:

• Formula: Net Income + D&A + Interest×(1−Tax Rate) − CapEx − ΔWorking Capital
• Adds back after-tax interest because FCFF is before debt service
• Discounted at the WACC to arrive at enterprise value
• Used in most professional DCF models and investment banking analyses

FCFE represents cash available only to equity holders:

• Formula: FCFF − Interest×(1−Tax Rate) + Net Borrowing
• Subtracts after-tax interest cost and adds new debt raised
• Discounted at the cost of equity to arrive at equity value directly
• Useful for financial institutions and dividend analysis

When to use each: For most non-financial companies, FCFF discounted at WACC is the standard approach because it separates operating performance from capital structure decisions. FCFE is preferred when analyzing banks and insurance companies (where debt is part of operations, not just financing) or when you want to estimate the maximum sustainable dividend.

Key insight: If a company has no debt and no net borrowing, FCFF and FCFE are identical. The difference only arises when the capital structure includes debt — and the more leveraged the company, the larger the gap between the two metrics.

Building free cash flow from net income is the most common approach in financial modeling. Here is the step-by-step bridge that takes you from the bottom line of the income statement to both FCFF and FCFE.

Step 1: Start with Net Income

Net income is the after-tax profit reported on the income statement. It already deducts interest expense, taxes, depreciation, and amortization.

Step 2: Add back Depreciation & Amortization

D&A is a non-cash charge that reduces reported earnings but does not consume any actual cash. Adding it back reverses this accounting deduction to reflect the real cash position.

Step 3: Add back After-Tax Interest Expense (for FCFF)

Since FCFF measures cash available to all capital providers (debt + equity), we need to reverse the interest deduction from net income. We use after-tax interest — Interest×(1−Tax Rate) — because the tax shield on interest is a real benefit that reduces the firm's cash tax payments.

Step 4: Subtract Capital Expenditures

CapEx is the cash spent on acquiring or maintaining physical assets (property, plant, equipment). This is a real cash outflow that must be deducted because the business needs these investments to sustain operations and grow.

Step 5: Subtract Changes in Working Capital

Working capital changes (ΔWC) capture cash tied up in inventory, receivables, and payables. An increase in working capital (e.g., building inventory) consumes cash, while a decrease releases cash.

Result: FCFF = Net Income + D&A + Interest×(1−Tax) − CapEx − ΔWC

Step 6: For FCFE, subtract after-tax interest and add net borrowing (new debt issued minus debt repaid). This adjusts for the cash flows between the firm and its lenders.

FCF margin (Free Cash Flow Margin) is calculated as free cash flow divided by revenue, expressed as a percentage. It tells you what fraction of every dollar in revenue ultimately converts to actual distributable cash — making it one of the most telling metrics for evaluating business quality.

FCF Margin = FCF ÷ Revenue × 100

Why FCF margin matters:

• Cash conversion efficiency — A high FCF margin means the company efficiently converts revenue into cash. This is more meaningful than net margin because it accounts for the cash impact of capital expenditures and working capital needs.
• Business quality signal — Companies with consistently high FCF margins (above 20%) tend to have durable competitive advantages: low capital requirements, high recurring revenue, and efficient operations.
• Capital allocation flexibility — Higher FCF margins mean more cash available for buybacks, dividends, acquisitions, or debt reduction without needing external financing.

Typical FCF margins by sector:

• Software / SaaS: 20–35%
• Pharmaceuticals: 15–30%
• Consumer Staples: 8–15%
• Industrials: 5–12%
• Retail / E-commerce: 2–8%

Key insight: Compare FCF margin to net income margin. If net margin is 20% but FCF margin is only 5%, the company is capital-intensive and most of its reported profits are being consumed by capex and working capital. This gap is a red flag that accounting earnings overstate the cash reality.

FCF yield is free cash flow divided by market capitalization (or enterprise value, depending on whether you use FCFE or FCFF). It measures how much cash return you're getting per dollar invested in the stock — think of it as the cash-based equivalent of an earnings yield.

FCF Yield = FCF ÷ Market Cap × 100

How investors use FCF yield:

• Valuation screening — A high FCF yield (above 5–8%) can signal an undervalued stock, especially if the cash generation is sustainable. Value investors specifically screen for high-FCF-yield stocks as potential opportunities.
• Buyback sustainability — FCF yield indicates how quickly a company could theoretically buy back all of its outstanding shares. An 8% FCF yield means the company could repurchase its entire market cap in about 12 years from cash flow alone.
• Dividend coverage — Compare FCF yield to dividend yield. If FCF yield is 6% and dividend yield is 4%, the dividend is well-covered with room for increases. If FCF yield is lower than dividend yield, the company may be borrowing to fund its dividend — a warning sign.
• Cross-asset comparison — FCF yield can be compared to bond yields or the risk-free rate to assess relative attractiveness. If a quality stock has an 8% FCF yield versus a 4% bond yield, the equity risk premium is generous.

Caution: A very high FCF yield isn't always a buy signal. It could indicate that the market expects FCF to decline (cyclical peak, loss of a major contract, or competitive pressure). Always investigate why the yield is high before assuming it's undervalued.

Free cash flow is the engine of a discounted cash flow model. The entire DCF framework rests on a simple idea: a company is worth the present value of all the cash it will generate in the future. Here is how FCF flows through a standard DCF model.

The DCF framework step by step:

• Project FCF for 5–10 years — Build revenue projections, estimate margins, subtract capex and working capital changes to arrive at projected FCF for each year. This is where the real analytical work happens.
• Calculate terminal value — After the explicit projection period, estimate the value of all future cash flows using either a perpetuity growth model (FCF×(1+g)/(WACC−g)) or an exit multiple approach. Terminal value typically represents 60–80% of total enterprise value.
• Discount to present value — Apply the WACC as the discount rate to bring all future cash flows back to today's value. Each year's FCF is divided by (1+WACC)^n.
• Sum to get enterprise value — Add up all discounted FCFs (explicit period + terminal value) to get the total enterprise value.
• Bridge to equity value — Subtract net debt (total debt minus cash) from enterprise value to get equity value. Divide by shares outstanding for the per-share fair value.

Why getting FCF right matters so much: Small changes in FCF projections cascade through the entire model. Overestimate FCF growth by just 2% per year, and your fair value could be inflated by 20–30%. This is why rigorous, bottoms-up FCF analysis — starting from revenue and building through margins, capex, and working capital — is far more reliable than top-down guesses.

Practical tip: Use this calculator to compute the current year's FCF from actual financial statements, then use that as the base year in your DCF projection. Having an accurate starting point is half the battle.

EBITDA and free cash flow are both measures of operating profitability, but they capture very different things. The gap between them can be enormous — and understanding why is critical for accurate valuation.

Key differences:

• Capital expenditures — EBITDA ignores capex entirely. FCF subtracts it. A company with $100M EBITDA and $80M required capex has very different cash economics than one with $100M EBITDA and $10M capex, even though their EBITDA is identical.
• Working capital — EBITDA ignores changes in receivables, inventory, and payables. FCF accounts for cash tied up in the business cycle. Fast-growing companies often consume significant cash through working capital expansion even as EBITDA grows.
• Taxes — EBITDA is pre-tax. FCF starts from net income (after tax) or adjusts for actual tax payments, giving a more realistic view of cash available to investors.
• Debt service — EBITDA is pre-interest. FCFE accounts for interest expense and net borrowing, reflecting cash actually available to shareholders.

The EBITDA-to-FCF conversion rate is a useful metric in itself. Companies that convert a high percentage of EBITDA into free cash flow (70%+) are generally higher-quality businesses with low maintenance capex, stable working capital, and efficient tax structures. Conversion rates below 50% signal capital-intensive operations or aggressive revenue recognition practices.

Bottom line: EBITDA is useful for quick comparisons and valuation multiples, but free cash flow is what actually matters for intrinsic valuation. If you can only look at one number, choose FCF every time.