Is a company that generates 500,000 of profit a good one? It depends on how much capital it had to invest to generate it. The ROIC (Return on Invested Capital) answers this question: it measures how much net operating profit after tax the company produces for each unit of capital employed in the business. But the number that really matters is the ROIC − WACC spread: only when the return exceeds the cost of capital does the company create value. This calculator determines ROIC, spread and economic value created from EBIT, tax and invested capital.

What the ROIC is

The Return on Invested Capital is the ratio between the net operating return (NOPAT) and the capital invested in the business. It answers the fundamental question of value investing: how efficient is the company at turning capital into profit? A ROIC of 12.5% means that every 100 of capital employed generates 12.50 of net operating profit per year. It is considered the quality metric of a business par excellence: companies with a high and persistent ROIC have a durable competitive advantage (an economic "moat") that protects their returns from competition.

The ROIC formula

The formula is: ROIC = NOPAT / invested capital × 100, where NOPAT = EBIT × (1 − tax rate). You start from the EBIT (operating income, before interest and taxes), bring it to after-tax to get the NOPAT, and divide it by the invested capital. With an EBIT of 500,000, a rate of 25% and an invested capital of 3,000,000: NOPAT = 500,000 × 0.75 = 375,000, so ROIC = 375,000 / 3,000,000 = 12.5%. The ROIC looks at the operating return, regardless of how the company is financed.

The NOPAT

The NOPAT (Net Operating Profit After Tax) is the operating profit after tax, but before financial charges. It is calculated as EBIT multiplied by (1 − tax rate). It is the profit the company would generate if it had no debt: it measures the profitability of the operating activity alone, without the effect of the financial structure. Using the NOPAT in the numerator, and the total invested capital (debt plus equity) in the denominator, makes the ROIC consistent: both refer to all financiers, shareholders and creditors, which is why it is compared with the WACC.

The invested capital

The invested capital is the sum of the financial resources employed in the operating activity. It can be calculated in two equivalent ways: from the financing side (financial debt + equity − cash and non-operating equivalents) or from the asset side (net operating working capital + fixed assets). The idea is to capture the capital that really serves to run the business, excluding the excess cash. It is the denominator of the ROIC: the more capital it takes to generate the same NOPAT, the lower the return. That is why "capital-light" companies tend to have higher ROICs.

ROIC and WACC: the spread that counts

The ROIC alone is not enough: it must be compared with the WACC (weighted average cost of capital), that is, how much it costs the company to finance itself between debt and equity. The ROIC − WACC spread is the true signal of value creation. With a ROIC of 12.5% and a WACC of 8%, the spread is +4.5 percentage points: the company yields more than its capital costs, so it creates value. If the ROIC were below the WACC, the spread would be negative and the company would destroy value, even while perhaps showing a positive accounting profit. The spread is what separates growth that creates wealth from growth that burns it.

The economic value created (EVA)

Multiplying the spread by the invested capital gives the economic value created, an approximation of the EVA (Economic Value Added). With a spread of 4.5 points and a capital of 3,000,000: 0.045 × 3,000,000 = 135,000. It means that, after remunerating all financiers at their cost of capital, the company is left with 135,000 of "extra" value created in the period. It is the economic profit, not the accounting one: it measures the wealth generated net of the cost of all capital, including the return expected by shareholders. A positive EVA is the goal of every efficient capital allocation.

How the calculator works

Enter the EBIT (operating income), the effective tax rate, the invested capital and the WACC. The calculator returns the NOPAT, the ROIC, the ROIC − WACC spread, the economic value created (EVA) and an assessment. It is the quickest tool to understand whether a company generates returns above the cost of its capital. Try different values of invested capital or WACC to see how the spread and the value creation change.

The values you need

You need four numbers, available from the financial statements. The EBIT, the operating income from the income statement (revenue minus operating costs, before interest and taxes). The effective tax rate, that is, income taxes divided by pre-tax profit (or the nominal rate as an approximation). The invested capital, from the balance sheet (financial debt plus equity minus cash). The WACC, the average cost of capital, often estimated between 7% and 10% for mature companies. With these four data the calculation is immediate.

Interpreting the ROIC − WACC spread

The value-creation signal depends on the width of the spread:

Companies with a durable competitive advantage keep wide and positive spreads for years; without a "moat", competition tends to erode the spread toward zero.

ROIC, ROE and ROA compared

The ROIC is often confused with other profitability ratios, but it measures a different thing:

The ROE can be inflated by debt; the ROIC cannot, because it uses the NOPAT (pre-interest) and all the capital: that is why it is the preferred metric to assess operating quality.

Example: same NOPAT, different capital

With a fixed NOPAT of 375,000, how the ROIC changes as the invested capital varies:

The same operating profit can create or destroy value depending on the capital it requires: capital efficiency is as important as the absolute profit.

Why the ROIC is the quality metric

The ROIC is the preferred metric of quality-oriented investors (from the Buffett-Munger style onward) because it captures the essence of a good business: the ability to reinvest capital at high returns. A company that generates a ROIC of 20% and can reinvest most of its earnings at that rate compounds value much faster than one with a ROIC of 7%. A high and stable ROIC over time is the proof of a durable competitive advantage: strong brands, network effects, switching costs, economies of scale. It is hard to maintain, because competition is attracted by high returns and tries to erode them.

What the calculation does not consider

The ROIC is a snapshot of a period: its persistence over time counts more than the single value. The calculation depends on the definitions: invested capital and NOPAT can be calculated with different adjustments (leases, goodwill, extraordinary items), so compare companies with consistent criteria. It does not consider the growth or how much capital the company can reinvest at the same ROIC (a high but non-reinvestable ROIC is worth less). The WACC is in turn an estimate. It is a tool of analysis, not a definitive judgment on the value of the company: it should be read together with growth, cash flows and the quality of the management.

Common mistakes

• Using the net income instead of the NOPAT in the numerator (the ROIC uses the pre-interest profit).
• Confusing ROIC and ROE: the ROE is influenced by financial leverage, the ROIC is not.
• Including the excess cash in the invested capital (the non-operating part should be excluded).
• Looking at the ROIC without comparing it with the WACC (without the spread you do not know if it creates value).
• Trusting a single year: the persistence of the ROIC over time counts.

How to use the calculator

Enter EBIT, tax rate, invested capital and WACC. Read the ROIC and, above all, the spread against the WACC: it is the spread that tells you whether the company creates value. Look at the economic value created (EVA) for the absolute amount of wealth generated. Compare the ROIC over time and with competitors, using consistent definitions of invested capital. Simulate variations of the capital or the WACC to understand how sensitive the spread and the value creation are. Use the ROIC together with growth and cash flows for a complete assessment.

Practical example

A company has an EBIT of 500,000, an effective tax rate of 25%, an invested capital of 3,000,000 and a WACC of 8%. The calculation gives a NOPAT of 375,000, a ROIC of 12.5%, a spread of +4.5 percentage points and an economic value created of 135,000, with the verdict "good: the ROIC exceeds the WACC, the company creates value". The company yields 12.5% on capital that costs it 8%: it creates value, generating 135,000 of economic profit beyond the cost of capital. Enter your numbers for your real analysis. The ROIC depends on the definitions of invested capital and NOPAT and captures a period; its persistence over time and the comparison with the WACC count more than the single value. It is an informational estimate, not investment advice.

Frequently asked questions

What is the ROIC (Return on Invested Capital)?

It is the ratio between NOPAT (net operating profit after tax) and invested capital, measuring how much return a company generates on the capital employed in the business. With NOPAT 375,000 and capital 3,000,000, the ROIC is 12.5%. It is the quality metric of a business par excellence.

How is the ROIC calculated?

ROIC = NOPAT / invested capital × 100, where NOPAT = EBIT × (1 − tax rate). With EBIT 500,000, rate 25% and capital 3,000,000: NOPAT = 375,000, ROIC = 375,000 / 3,000,000 = 12.5%.

What is the difference between ROIC and ROE?

The ROIC measures the return on all operating capital (debt plus equity) using the NOPAT (pre-interest); the ROE measures the return on equity only and is influenced by financial leverage. A heavily indebted company can have a high ROE but a modest ROIC: the ROIC is more "honest" about operating quality.

What does the ROIC − WACC spread mean?

It is the difference between the return on capital (ROIC) and its cost (WACC). If positive, the company creates value; if negative, it destroys it. With ROIC 12.5% and WACC 8%, the spread is +4.5 points: the company yields more than its capital costs.

What is the NOPAT?

The NOPAT (Net Operating Profit After Tax) is the operating profit after tax but before financial charges: EBIT × (1 − rate). It is the profit the company would generate without debt, and it is used in the numerator of the ROIC for consistency with the total invested capital.

What is the invested capital?

It is the capital employed in the operating activity, calculable as financial debt + equity − non-operating cash, or as operating working capital + fixed assets. It excludes the excess cash. It is the denominator of the ROIC.

What is the economic value created (EVA)?

It is the ROIC − WACC spread multiplied by the invested capital: the economic profit beyond the cost of all capital. With spread 4.5% and capital 3,000,000, the EVA is 135,000. It is the wealth created after remunerating shareholders and creditors.

What is a good ROIC?

It depends on the WACC: a ROIC must be judged relative to the cost of capital. In general a ROIC − WACC spread over +8 points is excellent, between +3 and +8 good, between 0 and +3 marginal, negative destroys value. Quality companies keep a high and stable ROIC over time.

Why is the ROIC so important for investors?

Because it captures the quality of the business: the ability to reinvest capital at high returns. A high and persistent ROIC indicates a durable competitive advantage (brands, network effects, switching costs). A company with a ROIC of 20% compounds value much faster than one at 7%.

Are ROIC and ROCE the same thing?

They are similar but not identical. The ROCE (Return on Capital Employed) uses the EBIT in the numerator (before taxes) and the capital employed in the denominator; the ROIC uses the NOPAT (after taxes). Both measure the return on total capital, but the ROIC accounts for taxation.

Should I use the net income or the EBIT?

Neither directly: you use the NOPAT, that is the EBIT after tax. The net income is already net of interest (influenced by leverage), so it is not consistent with the total invested capital; the EBIT is pre-tax, it must be brought to after-tax to get the NOPAT.

Is a single year of ROIC enough?

No, the persistence counts. A high ROIC in a single year can come from temporary factors; it is the high and stable ROIC over many years that indicates a real competitive advantage. Always look at the historical series and compare with competitors using consistent definitions.

Is it investment advice?

No, it is an informational tool that calculates the return on invested capital. It depends on the definitions of capital and NOPAT, captures a period and does not consider growth or reinvestability. It should be read together with cash flows, growth and other metrics, and does not replace professional analysis.

Updated July 2026