P/E Ratio Calculator
Calculate the price-to-earnings (P/E) ratio, earnings yield, premium or discount to a benchmark P/E, and PEG ratio from a share price and earnings per share.
Input
Trailing twelve-month or forward EPS.
Sector or index average, to measure premium/discount against.
Annual growth rate, in percent. Unlocks the PEG ratio.
Output
| Metric | Value |
|---|---|
| No data yet | |
More ways to use this tool
REST API
curl -X POST https://api.iotools.cloud/v1/tool/p-e-ratio-calculator \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"price": "150",
"eps": "6",
"benchmark": "",
"growth": ""
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `p-e-ratio-calculator` tool (P/E Ratio Calculator) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.
Embed widget
<iframe
src="https://iotools.cloud/embed/p-e-ratio-calculator/"
width="100%" height="520" frameborder="0" scrolling="no" loading="lazy"
title="P/E Ratio Calculator — iotools.cloud"
sandbox="allow-scripts allow-forms allow-same-origin allow-downloads allow-popups allow-popups-to-escape-sandbox"
allow="clipboard-write"
style="width:100%;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden"></iframe>
<script src="https://iotools.cloud/embed.js" async></script>Drop this into your own page — free, no key required, just a link back.
| Cost per API/MCP call | From 5 credits |
|---|---|
| Need more credits? | View pricing |
Also available with
Guides
The price-to-earnings ratio tells you how many dollars investors pay for each dollar of a company's annual earnings. Enter a share price and earnings per share to get the P/E, the earnings yield, and — optionally — how it compares with a benchmark and with expected growth.
How to use it
- Enter the share price and earnings per share (EPS).
- Optionally enter a benchmark P/E (a sector or index average) to see the premium or discount.
- Optionally enter expected EPS growth (%) to get the PEG ratio.
The formulas
P/E Ratio = Share Price ÷ EPS
Earnings Yield = EPS ÷ Share Price × 100
Premium/Discount = (P/E − Benchmark P/E) ÷ Benchmark P/E × 100
PEG Ratio = P/E ÷ EPS Growth Rate (%)Reading the result
A low P/E can signal a bargain or falling earnings; a high P/E means investors expect strong growth. A PEG near 1 is often read as fairly valued. P/E is not meaningful when EPS is zero or negative. This is an educational calculator, not investment advice.