Return on Equity (ROE) Calculator
Calculate Return on Equity (ROE) — net income divided by shareholders' equity — to measure how efficiently a company generates profits from equity investments. A cornerstone of fundamental analysis.
This free online return on equity (roe) calculator provides instant results with no signup required. All calculations run directly in your browser — your data is never sent to a server. Enter your values below and see results update in real time as you type. Perfect for everyday calculations, homework, or professional use.
How to Use This Calculator
Enter your input values
Fill in all required input fields for the Return on Equity (ROE) Calculator. Most fields include unit selectors so you can work in your preferred unit system — metric or imperial, whichever matches your problem.
Review your inputs
Double-check that all values are correct and that you have selected the right units for each field. Incorrect units are the most common source of calculation errors and can produce results that are off by factors of 2, 10, or more.
Read the results
The Return on Equity (ROE) Calculator instantly computes the output and displays results with units clearly labeled. All calculations happen in your browser — no loading time and no data sent to a server.
Explore parameter sensitivity
Try adjusting individual input values to see how the output changes. This is a quick and effective way to develop intuition about how different parameters influence the result and to identify which inputs have the largest effect.
Formula Reference
Return on Equity (ROE) Calculator Formula
See calculator inputs for the governing equation
Variables: All variables and their units are labeled in the calculator interface above. Input fields accept values in multiple unit systems — select your preferred unit from the dropdown next to each field.
When to Use This Calculator
- •Use the Return on Equity (ROE) Calculator when comparing financial options side-by-side — such as different loan terms or investment returns — to make more informed decisions.
- •Use it to quickly estimate costs or returns before making purchasing, investment, or borrowing decisions.
- •Use it for financial education and planning to understand how compound interest, fees, or tax affects the real value of money over time.
- •Use it when building or reviewing a budget to verify that projections and calculations are mathematically correct.
About This Calculator
The Return on Equity (ROE) Calculator is a free financial calculation tool designed to help individuals and businesses understand key financial concepts and estimate costs, returns, and loan parameters. Calculate Return on Equity (ROE) — net income divided by shareholders' equity — to measure how efficiently a company generates profits from equity investments. A cornerstone of fundamental analysis. The calculations are based on standard financial mathematics formulas. Results are for informational and educational purposes only and should not be considered financial, investment, or tax advice. Consult a qualified financial professional before making financial decisions. All calculations are performed in your browser — no personal financial data is stored or transmitted.
About Return on Equity (ROE) Calculator
The Return on Equity (ROE) Calculator measures how efficiently a company uses shareholder investments to generate profits. ROE is one of Warren Buffett's favorite metrics — he famously targets companies with consistent ROE above 15% as signals of durable competitive advantage. Unlike return on assets (which uses total assets), ROE focuses specifically on equity capital, making it ideal for comparing how well management deploys the money shareholders have actually invested. A high ROE indicates that a company generates strong profits relative to its equity base, often signaling efficient operations, pricing power, and competitive moats.
The Math Behind It
Formula Reference
ROE Formula
ROE = (Net Income / Shareholders' Equity) × 100
Variables: Net Income is after-tax profit; Shareholders' Equity is total assets minus liabilities
Worked Examples
Example 1: Strong Performer
A company reports $200M net income and $1B shareholders' equity.
ROE of 20% — indicates strong profitability on equity, likely a well-managed business.
Example 2: Average Company
Another company has $50M net income and $500M equity.
ROE of 10% — below the typical target of 15% — may indicate room for improvement or commodity-like business.
Common Mistakes & Tips
- !Using beginning equity rather than average equity for the year. Average equity (start + end / 2) provides a more accurate picture.
- !Comparing ROE across different industries without context. Banks and retailers have very different typical ROE levels.
- !Ignoring leverage when ROE is high. Always check debt-to-equity alongside ROE.
- !Treating one quarter's ROE as meaningful. ROE should be evaluated over 5+ years for trends.
Related Concepts
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Frequently Asked Questions
What is a good ROE?
Generally, ROE above 15% is considered good, above 20% is excellent, and consistent 20%+ ROE for 10+ years indicates a durable competitive advantage. However, ROE should always be compared within the same industry.
Can ROE be too high?
Yes. Extremely high ROE (40%+) is often a red flag for either excessive leverage (too much debt), accounting manipulation, or unsustainable circumstances. Very high ROE with very low equity can indicate a company that's already returned most capital to shareholders.
Why do banks have different ROE norms than tech companies?
Banks operate with high leverage (deposits are liabilities) and earn small margins on large volumes. Tech companies have lower leverage but higher profit margins. A 12% ROE is great for a bank but mediocre for a software company.
Should I use book value or market value of equity?
ROE uses book value (shareholders' equity from the balance sheet). Using market value gives you 'earnings yield' instead (net income / market cap), which is essentially the inverse of P/E ratio — different metric entirely.