Tools

P/E Ratio Calculator — is this stock cheap or expensive?

Price-to-earnings from price and EPS, plus optional sector P/E for a simple peer-implied price check. Education only — not financial advice.

Quick answer

P/E = Price ÷ EPS. A lower multiple can mean a cheaper valuation — or weaker growth. A higher multiple can mean optimism — or risk if expectations slip. Compare to sector peers and history, not one threshold.

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Definition

P/E = Price ÷ EPS · Earnings yield (%) = (EPS ÷ Price) × 100

Optional: Implied price at sector P/E = EPS × sector average P/E (same EPS you entered).

Stock price ($)Earnings per share — TTM ($)Sector average P/E (optional)Leave blank to skip peer-implied price.

Result

Enter price and EPS, then tap “Calculate P/E”.

When should you use this?

Use P/E as a fast lens on valuation: vs sector peers, vs the same company over time, and alongside growth and balance sheet. A low P/E is not automatically “cheap,” and a high P/E is not automatically “expensive” — context matters.

How it works

1
Enter stock price
Use the current quote (or a price you want to stress-test).
2
Enter EPS
Trailing twelve months (TTM) EPS is common; pick one definition and stay consistent.
3
Compare to sector (optional)
If you enter a sector average P/E, we show EPS × that multiple as a simple peer-implied price level.

Example

Price $150, EPS $6.50 → P/E ≈ 23.1. Earnings yield ≈ 4.33%. If sector average P/E is 22, implied price = 6.50 × 22 = $143 — the stock is roughly 5% above that naive peer line (before any quality adjustment).

Frequently asked questions

There is no single answer — it varies by sector, growth, rates, and risk. Lower P/E can mean cheaper valuation or weaker prospects; higher P/E can mean growth expectations or optimism. Compare to peers, history, and forward estimates — not one magic number.