How to use the PE Ratio Calculator

Compute the price-to-earnings multiple from a stock price and earnings-per-share assumption.

Calculation formula

P/E ratio = stock price per share ÷ earnings per share when EPS is positive.

Recommended steps

1. Enter values using the units shown beside each field.
2. Review whether the example assumptions match your situation.
3. Run the calculator and compare the key metrics.
4. Use the source data or official rates when precision matters.

Known limitations

P/E has no meaningful positive interpretation when EPS is zero or negative; no real-time price/EPS data is supplied.