Borrowing to invest is risky. Find out exactly how far the stock can fall before your broker demands more cash.
See your equity percentage and maintenance requirement instantly.
The precise share price that triggers a margin call.
Uses the standard (price × shares × maintenance %) − loan formula.
Run through a typical scenario with the sample values below — hit See an example to load them instantly.
| Input | Sample value |
|---|---|
| Current Price Per Share ($) | 100 |
| Shares Purchased | 500 |
| Margin % (borrowed) | 50 |
| Maintenance Margin (%) | 25 |
Follow the steps below to get accurate results.
Current Price Per Share ($) · e.g. 100Shares Purchased · e.g. 500Margin % (borrowed) · e.g. 50Maintenance Margin (%) · e.g. 25Borrowing to invest is risky. Find out exactly how far the stock can fall before your broker demands more cash.
Margin Call Calculator is an interactive estimate built for quick planning. Always double-check the numbers that matter before acting on them, and reach out to a professional for personalized advice.
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Simply fill in the fields and press Calculate. Borrowing to invest is risky. Find out exactly how far the stock can fall before your broker demands more cash.
Just the basics — Current Price Per Share ($) and Shares Purchased and Margin % (borrowed), plus a few simple inputs. No account or signup is required; everything runs in your browser.
Yes — completely free, with no login, no watermarks and no limits. Bookmark it and share the URL with anyone who needs it.
The calculator uses current, standard formulas to produce an educational estimate. Real-world figures can vary based on your specific situation, so treat it as a planning aid rather than a final answer.
Absolutely. The tool is fully responsive and works smoothly on mobile, tablet and desktop browsers.
The result is an estimate for educational purposes only and is not financial, legal or tax advice. Consult a qualified professional before making important decisions.