Stock Market & Investment Calculators

There's no single 'good' number — it depends on the industry and growth stage. As a rough guide, a P/E below 15 is often considered undervalued, 15-25 is moderate/fairly valued, and above 25 suggests the market expects high future growth (or the stock may be overvalued). Always compare a stock's P/E with its industry peers and its own historical average.

A negative P/E ratio occurs when a company has negative earnings (a net loss). It doesn't mean the stock is cheap — it means the P/E ratio isn't a meaningful valuation metric for that company right now. Investors typically look at other metrics like Price-to-Sales or Price-to-Book for loss-making companies.

Trailing P/E uses the company's actual earnings per share (EPS) from the past 12 months, while forward P/E uses analysts' estimated EPS for the next 12 months. This calculator computes a trailing-style P/E based on whatever EPS value you enter — use trailing EPS for historical valuation or forward EPS to gauge expected valuation.

Investors are willing to pay more per rupee of current earnings for companies expected to grow earnings rapidly in the future. This pushes up the P/E ratio. Value stocks with slower expected growth typically trade at lower P/E ratios.

It's best to compare P/E ratios within the same industry or sector, since capital intensity, growth rates and risk profiles vary widely across industries (for example, IT services vs. banking vs. FMCG). Comparing a stock's P/E to its sector average or the broader index P/E gives more meaningful context.