Stock Ratios Calculator

Compute key valuation, profitability, liquidity, and solvency ratios from company financial data.Instantly calculate P/E, P/B, P/S, ROE, Debt-to-Equity, Current Ratio, Quick Ratio, Dividend Yield, EPS, Net Margin and more.Visualize your company's financial health with interactive charts and benchmark comparisons.

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Understanding Financial Ratios: A Comprehensive Guide

Financial ratios are quantitative metrics derived from a company's financial statements. They provide essential insights into a company's valuation, profitability, liquidity, solvency, and operational efficiency. Investors, analysts, and corporate managers rely on these ratios to make informed decisions, compare peer companies, and assess the financial health of an organization.

A financial ratio = (one financial metric) ÷ (another financial metric)

Ratios standardize numbers, making them comparable across companies of different sizes and industries.

Valuation Ratios: Is the Stock Fairly Priced?

Valuation ratios help investors determine whether a stock is overvalued, undervalued, or fairly priced. They compare the market price of a company's shares to various measures of its financial performance or book value.

  • Price-to-Earnings (P/E) Ratio: Stock Price ÷ EPS. A high P/E may indicate that the market expects future growth, while a low P/E could signal undervaluation or fundamental concerns. The average P/E for the S&P 500 has historically ranged between 15 and 25.
  • Price-to-Book (P/B) Ratio: Stock Price ÷ Book Value Per Share. P/B below 1.0 often suggests the stock is trading below its net asset value, which may be a sign of undervaluation or distress. Financial and insurance companies are commonly evaluated using P/B.
  • Price-to-Sales (P/S) Ratio: Stock Price ÷ Revenue Per Share. Useful for evaluating companies with negative earnings, such as high-growth tech startups. It measures how much investors are paying for each dollar of revenue.

Profitability Ratios: How Efficiently Does the Company Generate Earnings?

Profitability ratios assess a company's ability to generate earnings relative to its revenue, assets, or equity. They are critical for evaluating management effectiveness and long-term sustainability.

  • Return on Equity (ROE): Net Income ÷ Shareholders' Equity. ROE measures how effectively a company uses shareholders' funds to generate profit. A consistently high ROE (e.g., > 15%) is a hallmark of strong businesses.
  • Return on Assets (ROA): Net Income ÷ Total Assets. This ratio shows how efficiently management uses all assets to produce earnings. ROA is particularly useful for comparing companies in capital-intensive industries.
  • Net Profit Margin: Net Income ÷ Total Revenue. This margin indicates how much of each dollar of revenue is converted into actual profit. It reflects pricing power, cost control, and operational efficiency.

Liquidity & Solvency: Can the Company Meet Its Obligations?

Liquidity ratios measure a company's ability to pay off short-term liabilities with short-term assets. Solvency ratios assess long-term financial stability and the ability to meet debt obligations.

  • Current Ratio: Current Assets ÷ Current Liabilities. A ratio above 1.0 indicates that the company has more current assets than liabilities, suggesting it can cover short-term obligations. A ratio below 1.0 may signal liquidity risk.
  • Quick Ratio (Acid-Test): (Current Assets − Inventory) ÷ Current Liabilities. This is a more stringent measure of liquidity, excluding inventory which may not be quickly convertible to cash. A quick ratio of at least 1.0 is generally considered healthy.
  • Debt-to-Equity (D/E) Ratio: Total Liabilities ÷ Shareholders' Equity. A high D/E ratio indicates that a company is heavily financed by debt, which amplifies financial risk. Industries like utilities and telecommunications typically have higher D/E ratios due to their capital-intensive nature.

Dividend & Growth: Rewarding Shareholders

  • Dividend Yield: Annual Dividend Per Share ÷ Stock Price. This measures the cash return on an investment from dividends alone. Utility and consumer staple companies often offer higher yields.
  • Dividend Payout Ratio: Dividends Per Share ÷ EPS. This indicates what proportion of earnings is returned to shareholders as dividends. A payout ratio above 60–70% may be unsustainable if earnings decline.
  • Earnings Per Share (EPS) Growth: (Current EPS − Prior EPS) ÷ Prior EPS. EPS growth is a key driver of stock price appreciation over the long term.

How to Use This Calculator Effectively

  1. Enter company financial data in the input fields. You can use real data from a company's 10-K or 10-Q filing, or use our preset examples for quick exploration.
  2. Click "Calculate Ratios" to instantly compute all key financial ratios. The results are displayed in a structured dashboard with summary cards and detailed lists.
  3. Interpret the results using our built-in benchmark context and interpretation guide. Compare each ratio against industry averages or historical trends.
  4. Visualize the data with the interactive bar chart, which scales ratios for relative comparison. This helps you quickly identify strengths and weaknesses.
  5. Use the presets to explore different company archetypes — from high-growth tech to stable utilities — and understand how their financial profiles differ.

Case Study: Analyzing a Technology Company

TechCo Inc. — A Hypothetical Analysis

Scenario: TechCo Inc. has a stock price of $180, EPS of $7.20, book value of $52 per share, revenue per share of $38, and pays an annual dividend of $1.80. Its balance sheet shows total assets of $120 billion, total liabilities of $55 billion, current assets of $45 billion, and current liabilities of $22 billion. Net income is $18 billion, total revenue is $95 billion, and shareholders' equity is $65 billion.

Key findings from our calculator:

  • P/E Ratio = 25.0 — This is slightly above the S&P 500 historical average, indicating that investors are paying a premium for growth expectations. For a tech company with strong R&D and market expansion, this may be justified.
  • P/B Ratio = 3.46 — The company trades at a significant premium to its book value, reflecting its intangible assets (IP, brand, user base) that are not fully captured on the balance sheet.
  • P/S Ratio = 4.74 — A moderate sales multiple, common for established tech firms with healthy margins.
  • ROE = 27.7% — An excellent return on equity, signaling efficient use of shareholder capital. This is typical of high-margin tech businesses.
  • Net Profit Margin = 18.9% — Solid profitability, reflecting strong pricing power and cost discipline.
  • Current Ratio = 2.05 — Well above 1.0, indicating strong short-term liquidity. Tech companies often maintain high current ratios to fund R&D and acquisitions.
  • D/E Ratio = 0.85 — A moderate debt load. Tech firms often carry less debt than capital-intensive industries, making this ratio healthy.

Conclusion: TechCo appears to be a high-quality growth company with strong profitability, ample liquidity, and manageable debt. The valuation multiples are elevated but not unreasonable given its growth trajectory and industry context. Investors should monitor EPS growth and competitive dynamics to ensure the premium is sustained.

Industry Benchmarks: What's "Normal"?

Typical ranges for major financial ratios by sector (approximate):

Technology: P/E 20–35, ROE 18–30%, Current Ratio 1.5–3.0
Financials: P/B 0.8–2.0, ROE 10–18%, D/E 1.5–5.0
Consumer Staples: P/E 15–22, Dividend Yield 2–4%, Current Ratio 0.8–1.5
Utilities: P/E 14–20, Dividend Yield 3–5%, D/E 1.5–3.5
Healthcare: P/E 16–28, ROE 12–22%, Current Ratio 1.5–2.5
Energy: P/E 10–18, ROE 8–16%, D/E 0.8–2.5
Source: Industry averages based on S&P 500 sector data, 2024–2025. These are general guides; actual figures vary by company and market conditions.

Frequently Asked Questions

There is no universal "good" P/E ratio — it depends on the industry, growth rate, and market conditions. Historically, the S&P 500 average P/E has ranged between 15 and 25. Growth stocks often trade at higher P/Es (30–50+) because investors expect future earnings growth, while value stocks may have P/Es below 15. Always compare a company's P/E to its industry peers and its own historical average.

A negative ROE means the company is generating a net loss relative to its shareholders' equity. This is a red flag that suggests the company is not using equity efficiently to produce profit. However, temporary negative ROE can occur during restructuring or economic downturns. Persistent negative ROE is a serious concern for investors.

The Quick Ratio (also called the Acid-Test Ratio) is a stricter measure of liquidity because it excludes inventory from current assets. Inventory can be difficult to liquidate quickly, especially during a crisis. The Quick Ratio focuses on the most liquid assets — cash, marketable securities, and accounts receivable — providing a more conservative view of a company's ability to meet short-term obligations.

A D/E ratio below 1.0 is generally considered conservative, indicating that the company uses more equity than debt. However, "healthy" varies by industry. Capital-intensive sectors like utilities and telecommunications often have D/E ratios above 2.0, while technology and consumer discretionary companies typically have lower ratios. A D/E ratio above 3.0 may signal high financial risk, especially during periods of rising interest rates.

Yes. Simply enter the company's financial data from its most recent 10-K or 10-Q filing. You can find these metrics on financial websites such as Yahoo Finance, Morningstar, or the company's investor relations page. The calculator works for any company where you have the required inputs — stock price, EPS, book value, dividends, revenue per share, and balance sheet figures.

References: Investopedia Financial Ratios; Brigham, E. F., & Ehrhardt, M. C. "Financial Management: Theory & Practice" (16th ed.); SEC EDGAR. Reviewed by the GetZenQuery tech team, last updated June 2026.