PE Ratio Calculator

How to use

1. 1Pick a mode: P/E ratio, Forward P/E, PEG ratio, or Solve for EPS.
2. 2Enter the share price and earnings per share (EPS) using the diluted EPS from the company filing for a like-for-like comparison.
3. 3For Forward P/E and PEG ratio, also enter the expected EPS growth rate as a percent (annualized).
4. 4Read the headline P/E, earnings yield, and the interpretation band that explains where the multiple sits relative to the broad market.
5. 5For the P/E mode, review the price-sensitivity table to see how P/E moves at -25%, -10%, +10%, +25%, and +50% of the current price.
6. 6Tap a preset to load a worked example, or use Copy summary to paste the full breakdown into notes.

About this tool

PE Ratio Calculator answers the price-to-earnings questions a retail investor types into search after they hear a stock is "trading at 20 times earnings". Four self-contained modes cover the most common shapes of the question. The P/E ratio mode takes the current share price and trailing twelve-month earnings per share (EPS) and returns the trailing P/E, the earnings yield (the inverse of P/E, expressed as a percent and directly comparable to a bond yield), and an interpretation band that explains where the multiple sits: very low for deep value or distressed names, low for the value range, average for the broad-market band, elevated for growth-priced stocks, high for high-growth or thematic names, and very high for speculative multiples. The forward P/E mode takes trailing EPS and an expected EPS growth rate and shows the trailing and forward P/E side by side, with the multiple compression (how many P/E turns the multiple loses when forward earnings grow into the price). The PEG ratio mode divides the P/E by the expected earnings growth rate and reads it against the classic Peter Lynch bands (PEG below 1 historically suggests cheap-for-growth, 1 to 1.5 is fair, above 2 is expensive). The solve-for-EPS mode answers the reverse question: at this share price and target P/E, what EPS does the company need to hit. A price-sensitivity table at -25%, -10%, current, +10%, +25%, and +50% shows how P/E and earnings yield move when the price moves on unchanged EPS. Worked-example presets cover a blue-chip mature stock at a market-typical multiple, an out-of-favour value name at a single-digit P/E, a high-growth stock priced for growth with a PEG check, a forward-P/E example with 15% growth, a REIT with a higher payout, and a loss-making company where trailing P/E is not meaningful. Currency selection covers USD, EUR, GBP, CAD, AUD, INR, JPY, SGD, and TRY for display formatting only; no FX rates and no quotes are fetched. The page does not give investment advice; it states the formula, shows the result, and explains the interpretation bands. Useful for retail investors comparing valuations across stocks, sectors, or against a company's own history, learners working through how P/E relates to earnings yield, and anyone trying to figure out what trailing and forward P/E actually mean. All math runs locally on your device.

Free to use. Works in your browser. No signup, no login.