Free Stock Analysis
Calculators
Every calculator a fundamental investor needs — intrinsic value, valuation ratios, and options analysis. All free. All run in your browser. No account required.
Intrinsic Value
Estimate what a stock is actually worth — before looking at the price.
DCF Calculator
Most-usedTwo-stage discounted cash flow model. Project earnings through a high-growth phase and a stable phase, then discount back at your WACC to get intrinsic value per share.
Intrinsic Value Calculator
Quick estimateGraham-inspired formula combining EPS growth and a no-growth baseline P/E to arrive at a single intrinsic value estimate. Simple inputs, transparent math.
Graham Number Calculator
Classic formulaBenjamin Graham's upper-bound fair price: √(22.5 × EPS × Book Value). The classic defensive-investor screen in one calculation.
Margin of Safety Calculator
Safety firstEnter intrinsic value and current price to calculate the margin of safety percentage. The difference between a good company and a good investment.
Book Value Calculator
Asset analysisCalculate book value per share and price-to-book ratio. Essential for asset-heavy businesses and banking sector analysis.
Ratios & Fundamentals
The ratios analysts use every day — all in one place, all free.
P/E Ratio Calculator
Core metricTrailing P/E, forward P/E, and implied fair value from a target multiple. The most widely-used valuation metric, calculated correctly.
PEG Ratio Calculator
Growth-adjustedPrice/Earnings-to-Growth adjusts the P/E for expected earnings growth. PEG < 1 has historically suggested relative undervaluation vs. growth peers.
EV/EBITDA Calculator
M&A standardEnterprise value to EBITDA — capital-structure-neutral comparison across sectors. Useful for comparing leveraged companies where P/E misleads.
Price-to-Sales Calculator
Pre-profitP/S ratio for early-stage or unprofitable companies where earnings-based multiples don't apply. Compare against sector medians.
Dividend Yield Calculator
Income focusAnnual dividend yield, payout ratio, and years-to-recover via dividends alone. Key inputs for income investors and dividend-growth analysis.
Dividend Safety Check
Cut riskEnter dividend per share, EPS, and free cash flow to get a composite Dividend Safety Score (0–100), payout ratio tier, FCF coverage, and cut-risk rating.
ROE Calculator
Quality screenReturn on equity with DuPont decomposition — breaks ROE into profit margin, asset turnover, and leverage so you know why it's high or low.
Debt-to-Equity Calculator
Leverage riskTotal and net leverage ratios, plus interest coverage. Identify capital structure risk before it shows up in earnings.
WACC Calculator
Discount rateWeighted average cost of capital: cost of equity (CAPM) blended with after-tax cost of debt. The discount rate for every DCF model.
Options
Size positions and screen for high-IV setups — before entering the trade.
Options Profit Calculator
P&L modelingP&L at expiration for calls, puts, covered calls, cash-secured puts, and spreads. Input premium, strike, and expiry to see your breakeven and max risk.
IV Percentile Screener
Volatility screenScreen 800+ stocks by IV Rank and IV Percentile. High IV Rank favors premium-selling strategies; low IV Rank favors premium buying.
Want the full platform?
800+ stocks scored with 15 valuation models
Equity Rank runs every calculator across the S&P 500 nightly and surfaces the highest-scoring research ideas in a single screener. 7-day free trial.
Free Weekly Update
800+ stocks re-scored every week.
Delivered free every Sunday.
- Top 5 most undervalued stocks by margin of safety — with valuation breakdown
- Biggest score changes from the prior week across 800+ equities
- Best options setups from the screener (covered calls, cash-secured puts)
Research and educational purposes only. Not investment advice.
Common Questions
What free stock analysis calculators does Equity Rank offer?
Equity Rank provides 16 free investment calculators: DCF, Intrinsic Value, Graham Number, Margin of Safety, Book Value, P/E Ratio, PEG Ratio, EV/EBITDA, Price-to-Sales, Dividend Yield, ROE, Debt-to-Equity, WACC, Options Profit Calculator, and IV Percentile Screener. All are free with no account required.
Do I need to create an account to use these calculators?
No account is required for any of the 16 calculators. All tools run directly in your browser without registration or login.
What is a DCF calculator and how does it work?
A Discounted Cash Flow (DCF) calculator estimates intrinsic stock value by projecting future earnings over two growth phases, then discounting those cash flows back to the present at your required rate of return (WACC). The result is an intrinsic value per share you can compare to the current market price.
How is the Graham Number calculated?
The Graham Number = √(22.5 × EPS × Book Value Per Share). It represents the upper-bound fair price for a defensive investor based on Benjamin Graham's principles from The Intelligent Investor. Stocks trading below their Graham Number are considered statistically cheap on both an earnings and asset basis.
What is IV Percentile and why does it matter for options trading?
IV Percentile (or IV Rank) measures where a stock's current implied volatility sits relative to its 52-week range. A high IV Rank (above 50) generally favors premium-selling strategies like covered calls and cash-secured puts. A low IV Rank generally favors premium-buying strategies like long calls or puts. Knowing IV context before entering a trade reduces the risk of overpaying for options.