Price-to-Earnings (P/E) Calculator

Estimate valuation with a simple share price and EPS calculation.

Inputs

Current market price per share.

Trailing or forward EPS.

Results

Updates instantly
20.00
P/E Ratio
Earnings Yield
5.00%
EPS Used
6.00
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About This Calculator

Overview

This P/E ratio calculator estimates valuation by dividing share price by earnings per share (EPS), helping you compare companies at a glance.

When to Use It

  • Compare valuation between similar companies in the same sector.
  • Check how price changes affect P/E quickly.
  • Evaluate whether growth expectations justify a higher multiple.

P/E Formula

P/E Ratio = Share Price / Earnings per Share (EPS)
Share Price
Current market price per share.
EPS
Earnings per share (trailing or forward).
P/E Ratio
Valuation multiple based on earnings.

Example Calculation

Inputs
  • Share Price: $120
  • EPS: $6.00
Output
  • P/E Ratio: 20.00

Common Mistakes

  • Using negative EPS (P/E is not meaningful).
  • Comparing companies with very different growth rates.
  • Mixing trailing EPS with forward-looking price expectations.

Tips & Next Steps

  • Compare P/E within the same industry.
  • Use forward EPS for growth companies.
  • Check earnings yield alongside P/E.

FAQs

What does P/E ratio mean?
P/E compares a company’s share price to its earnings per share. It’s a quick valuation metric to compare companies.
What if EPS is negative?
If earnings are negative, P/E is not meaningful. Many analysts use other metrics like price-to-sales.
Is a higher P/E always bad?
Not necessarily. High P/E can reflect strong growth expectations, while low P/E may indicate slower growth or risk.