ROE Calculator

Return on equity (ROE) tells you how much profit a company squeezes out of the money shareholders have put in. Divide net income by shareholders' equity, and the percentage you get is how efficiently that equity turned into earnings over the period.

What is return on equity?

ROE is net income divided by shareholders' equity, expressed as a percentage. A figure of 15% means the company earned 15 cents of profit on every dollar of equity. The number is most useful when stacked against direct competitors or against the same company's prior years. A bank's ROE doesn't tell you much about a software firm, and vice versa.

Healthy figures usually fall between 15% and 20%. Capital-heavy industries like utilities run lower, while asset-light software businesses run much higher. Five or ten years of steady ROE is a much stronger signal than a single great quarter.

How to use this calculator

Find net income on the income statement (the bottom line, after taxes). Find shareholders' equity on the balance sheet, where it equals total assets minus total liabilities. Put both numbers in. The result is ROE as a percentage.

The calculator also runs in reverse. Enter a target ROE and the current equity, and it solves for the net income needed to hit that target. Or set net income with a target ROE, and it gives you the equity figure that produces the result.

Understanding the formula

Take a company with $5 million in net income and $25 million in shareholders' equity. Five divided by twenty-five is 0.20, so ROE comes in at 20%. For every dollar of equity, the business produced 20 cents of profit.

Two details matter once you start comparing companies. If equity has shifted a lot during the year, big buybacks, a new share issue, a write-down, analysts often use average equity (the mean of the opening and closing balance) to smooth out the distortion. ROE also counts both reinvested earnings and borrowed money. A company that loads up on debt can post a high ROE without actually being more profitable, which is why glancing at debt-to-equity matters before getting excited about the headline number.

Applications

Most investors use ROE as a quick screen for capital efficiency before digging into a company. Analysts watch it over time: a steady or rising ROE often points to durable margins or a real competitive moat, while a falling one can flag pricing pressure, bloated equity from retained losses, or a business model that's losing its grip. Inside the company, finance teams use ROE to test whether share buybacks, dividends, or reinvestment are creating value for shareholders or just shuffling numbers around.

DuPont analysis breaks ROE into three pieces, profit margin, asset turnover, and financial leverage, to show which lever is actually driving the result. The decomposition is often more revealing than the headline figure.

Tips for interpreting ROE

• Compare within the same industry. A 25% ROE is unremarkable in software and exceptional in steel; cross-sector comparisons mostly just measure the sector.

• Check leverage. Heavy debt shrinks equity, so ROE can climb while underlying profitability is flat. Pair it with debt-to-equity or return on assets to catch this.

• Look at the trend. One good year can come from a tax break, a divestiture, or an accounting change. Five years of steady ROE is the real signal.

• Watch for buybacks. Aggressive share repurchases reduce equity and mechanically push ROE up without any improvement in earning power.

Frequently asked questions

What counts as a good ROE?

For most public companies, anything between 15% and 20% is considered solid. Software and consumer brands tend to run higher because they don't need much capital to operate; utilities, real estate, and heavy manufacturing tend to sit lower because of the equity tied up in physical assets. Compare against industry peers before deciding whether a number is good.

Can ROE be negative?

Yes, and it usually means the company is losing money. A net loss produces a negative ROE, signaling the business is eroding shareholder value rather than building it. ROE can also turn negative or get distorted when equity itself is negative, which happens after years of accumulated losses or huge debt-funded buybacks. In those situations, return on assets or free cash flow gives a clearer picture.

How is ROE different from ROA?

ROA (return on assets) divides net income by total assets, measuring how well the company uses everything it owns. ROE only counts the slice funded by shareholders. When a company is heavily leveraged, ROA stays modest while ROE looks impressive, because debt amplifies returns to equity. Reading them side by side tells you how much of the ROE is genuine earning power versus borrowed firepower.

How often should I check ROE?

Quarterly is fine for active monitoring, but the trailing twelve-month or five-year average is what matters for judgment. A single rough quarter, from a write-down, a tax benefit, or an asset sale, rarely changes the picture. If ROE swings sharply, read the earnings release before reacting.