Free Cash Flow (FCF) Calculator

Use this Free Cash Flow Calculator to turn operating numbers into clear, actionable cash insights in seconds. Compare methods, test scenarios, and instantly understand whether your cash generation supports growth or distributions.

By CalcMastery Editorial Team

Free Cash Flow (FCF) Calculator

Calculate free cash flow (FCF) using either operating cash flow minus capital expenditures, or by deriving FCF from EBIT, tax rate, and working capital movements. Optionally compute FCF margin and FCF per share.

Operating Cash Flow − CapExEBIT-based (NOPAT + adjustments)

Choose whether you want to start from operating cash flow or build FCF from EBIT, taxes, and working capital.

$

Net cash provided by operating activities for the period (from the cash flow statement).

$

Earnings before interest and taxes for the period.

%

Effective tax rate applied to EBIT to estimate after-tax operating profit (NOPAT).

$

Non-cash depreciation and amortization expenses added back to arrive at cash flow.

$

Increase in net working capital uses cash and reduces FCF; a decrease provides cash. Enter increases as positive and decreases as negative.

$

Cash spent on property, plant, equipment, or other long-term assets during the period.

$

Provide total revenue to compute FCF margin (FCF as a percentage of revenue).

Turn on to compute free cash flow per share using shares outstanding.

shares

Total number of shares outstanding. Used only when FCF per share is enabled.

Scenarios
Explore FCF for stable, high-growth, and asset-light business profiles.
Stable Mature BusinessHigh-Growth, Heavy ReinvestmentAsset-Light BusinessTurnaround with Negative FCF

Results

  • Free Cash Flow (FCF)$
  • FCF Margin— %
  • FCF Health—
  • Operating Cash Flow$
  • Capital Expenditures (CapEx)$
  • Revenue$
  • FCF per Share$
  • Depreciation & Amortization (D&A)$
  • Change in Net Working Capital$

Enter your inputs above to calculate the results.

What is Free Cash Flow?

Free cash flow (FCF) is the cash a company has left after funding its operating costs and capital expenditures. It matters because FCF drives valuation, capital allocation decisions, and overall financial strength — it’s the cash that fuels growth, reduces debt, or rewards shareholders.

Formula

Operating Cash Flow method

FCF = Operating Cash Flow − CapEx

EBIT (NOPAT-based) method

FCF = EBIT × (1 − Tax Rate) + D&A − ΔNet Working Capital − CapEx

FCF Margin

FCF Margin = FCF / Revenue × 100%

Example

Method 1 – Operating Cash Flow − CapEx

  • Operating cash flow: 350,000
  • CapEx: 150,000
  • Revenue: 2,000,000

Step 1:

FCF = 350,000 − 150,000 = 200,000

Step 2:

FCF Margin = 200,000 / 2,000,000 × 100% = 10%

Interpretation: A 10% FCF margin indicates solid cash generation after essential reinvestment.

Method 2 – EBIT-based (NOPAT + adjustments)

  • EBIT: 300,000
  • Tax rate: 25%
  • D&A: 80,000
  • Change in net working capital: 20,000
  • CapEx: 150,000
  • Revenue: 2,000,000

Step 1:

NOPAT = 300,000 × (1 − 0.25) = 225,000

Step 2:

Operating Cash Flow = 225,000 + 80,000 − 20,000 = 285,000

Step 3:

FCF = 285,000 − 150,000 = 135,000

Step 4:

FCF Margin = 135,000 / 2,000,000 × 100% = 6.75%

Interpretation: This reflects moderate free cash flow — generally enough to sustain reinvestment with limited distributions.

How to Use the Free Cash Flow Calculator

This tool computes free cash flow using either the direct cash-flow method or a valuation-style EBIT→NOPAT approach. Enter your inputs and the calculator reveals FCF, FCF margin, and a health indicator.

Choose the calculation method

  • Select Operating Cash Flow − CapEx if you have operating cash flow from the cash flow statement.
  • Select EBIT-based (NOPAT + adjustments) if you are starting from EBIT.

Enter the core inputs

  • For the OCF method: enter Operating Cash Flow and CapEx.
  • For the EBIT method: enter EBIT, Tax Rate, D&A, Change in Net Working Capital, and CapEx.

Add revenue and optional per-share metrics

  • Enter Revenue to compute FCF margin.
  • Toggle Show FCF per share if needed, then enter shares outstanding.

Frequently Asked Questions

How do I know if the free cash flow my company shows here is “good” or “healthy”?

Look at the FCF margin in the results. Roughly >15% is strong, 5–15% is moderate, and anything near or below 0% needs deeper analysis. Always compare with past years and peers because capital intensity varies by industry.

Why does this calculator offer both “Operating Cash Flow – CapEx” and “EBIT-based (NOPAT + adjustments)” methods?

The first method works when you have cash flow from operations available. The EBIT-based method rebuilds free cash flow from income-statement data (EBIT → NOPAT → add back D&A → adjust for working capital → subtract CapEx), which is how analysts compute FCFF in valuation.

Can free cash flow be negative and the business still be okay?

Yes. Fast-growing or capital-intensive companies often show negative FCF because they’re investing heavily. The real warning sign is persistent negative FCF without clear payoff or strategy.

How should I actually use the FCF result from this calculator in decisions?

Treat FCF as cash available for debt repayment, dividends, buybacks, or reinvestment. Track FCF and FCF margin over several years and compare with peers to judge financial strength and sustainability.

Sources & Methodology