Stock PE Ratio Calculator
Calculate the Price-to-Earnings ratio and find out if a stock is fairly valued.
PE Ratio
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How to Use This Calculator
- Enter the current share price of the stock
- Enter the Earnings Per Share (EPS) — you can find this on financial websites like Yahoo Finance
- Click Calculate to get the PE ratio
- Use the result to compare with industry averages
What is PE Ratio?
The Price-to-Earnings (PE) ratio measures a company's current share price relative to its earnings per share (EPS). It's one of the most widely used valuation metrics in investing.
PE Ratio = Share Price ÷ Earnings Per Share (EPS)
PE Ratio Interpretation
| PE Range | Interpretation |
|---|---|
| Below 10 | Potentially undervalued (or declining earnings expected) |
| 10 – 15 | Below average — may be a good value |
| 15 – 25 | Average range — fair valuation |
| 25 – 40 | Above average — high growth expectations |
| Above 40 | Potentially overvalued (or very high growth expected) |
Frequently Asked Questions
What is a good PE ratio?
A PE ratio between 10-20 is generally considered reasonable for most companies. Below 10 may indicate an undervalued stock, while above 25-30 might suggest overvaluation. However, "good" depends heavily on the industry — tech stocks typically have higher PE ratios than utility companies.
What's the difference between forward PE and trailing PE?
Trailing PE uses actual earnings from the past 12 months. Forward PE uses analyst estimates for the next 12 months. Forward PE is more forward-looking but relies on projections that may not materialize.
Can PE ratio be negative?
Yes. When a company has negative earnings (a loss), the PE ratio is negative. This usually means the PE ratio isn't a useful metric for that company — investors should look at other measures like price-to-sales or price-to-book instead.
Is a lower PE ratio always better?
Not necessarily. A low PE could mean the stock is undervalued, but it could also mean the market expects earnings to decline. Always compare PE ratios within the same industry and consider other factors like growth rate, debt levels, and competitive position.
⚠️ Disclaimer: This calculator is for educational and informational purposes only. It does not constitute financial advice. Always consult a qualified financial advisor before making investment decisions.