P/E Ratio Calculator — Price to Earnings Stock Valuation ToolP/E = Share Price / EPS · Forward P/E · Trailing P/E · PEG Ratio · Valuation
Use this free P/E Ratio Calculator to instantly compute the Price-to-Earnings (P/E) ratio of any stock — the most widely used stock valuation metric in fundamental investing and equity analysis — using the standard P/E ratio formula: P/E Ratio = Share Price / Earnings Per Share (EPS). Enter your stock's current share price and EPS (Earnings Per Share) to instantly calculate: Trailing P/E ratio (based on last 12 months EPS) · Forward P/E ratio (based on projected next 12 months EPS) · PEG ratio (P/E ÷ EPS growth rate %) · valuation verdict — overvalued, fairly valued, or undervalued — benchmarked against sector average P/E ratios and the S&P 500 historical average P/E of 15–25×.
The P/E ratio tells investors how many times earnings they are paying for each share — a high P/E ratio may indicate a growth stock priced for future earnings expansion or a potentially overvalued stock, while a low P/E ratio may signal an undervalued value stock or reflect declining earnings expectations. This stock P/E calculator is trusted by retail investors, equity analysts, portfolio managers, CFA charterholders, and SEBI-registered investment advisors (RIA) for stock screening and comparison, value investing analysis (Benjamin Graham and Warren Buffett style), growth vs value stock identification, sector P/E benchmarking — technology, banking, FMCG, pharma, and infrastructure, and NSE, BSE, NYSE, NASDAQ, and LSE listed stock valuation. Always use P/E alongside P/B ratio, EV/EBITDA, dividend yield, and free cash flow (FCF) analysis for complete equity valuation.
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P/E Ratio Calculator — What the Market Is Paying for Each Dollar of Earnings
The price-to-earnings ratio tells you how many dollars the market is paying for each dollar of annual earnings. A P/E of 20 means investors are paying $20 for each $1 of annual earnings — implying they expect those earnings to grow or persist for a long time. A P/E of 10 on the same earnings implies lower growth expectations or higher perceived risk. The P/E calculator computes both trailing P/E (using the last 12 months of actual earnings) and forward P/E (using next-12-month earnings estimates), which often diverge significantly for fast-growing or declining companies.
P/E ratios are only meaningful in context. The S&P 500 has historically traded at a P/E of 15-20; technology stocks routinely trade at 30-50×; utilities and banks trade at 10-15×; high-growth loss-making companies have infinite or negative P/E by definition. Comparing a retailer at P/E 12 to a software company at P/E 35 without considering industry norms, growth rates, and capital intensity leads to false conclusions. The calculator contextualizes P/E against the historical market average and sector median.
PEG ratio — P/E divided by earnings growth rate — corrects for growth differences. A company at P/E 30 with 30% earnings growth has PEG = 1.0, conventionally considered fairly valued. A company at P/E 15 with 5% growth has PEG = 3.0, suggesting it is expensive relative to its growth. PEG below 1 is considered potentially undervalued; above 2 is potentially overvalued. The calculator computes PEG from the P/E and user-supplied earnings growth rate estimate.