Stock Portfolio Calculator

One view of all your holdings — total value, gains, losses and how concentrated you really are.

No login Educational estimate Shareable URL

Multi-stock tracking

Add any number of holdings at once.

Allocation analysis

Shows each position's weight in your portfolio.

Instant P/L

Total profit/loss and return at a glance.

Example Calculation

Run through a typical scenario with the sample values below — hit See an example to load them instantly.

InputSample value
Holdings (ticker, shares, buy price, current price)AAPL,100,150,180
MSFT,50,300,340
TSLA,30,250,220
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How to Use This Tool

Follow the steps below to get accurate results.

  1. Enter your holdings One position per line: ticker, shares, buy price, current price. e.g. AAPL,10,150,180.
  2. Click Calculate The tool aggregates all positions into portfolio totals.
  3. Read the summary Total invested, current value, profit/loss, overall return and your largest position.

Input Fields

  • Holdings (ticker, shares, buy price, current price)

Outputs You Will Get

  • Total Invested
  • Current Value
  • Total Profit / Loss
  • Overall Return
  • Largest Position
Track your overall return — a single big winner can hide losers elsewhere in your portfolio.
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How This Calculator Works

One view of all your holdings — total value, gains, losses and how concentrated you really are.

What you will get

Good to know

Stock Portfolio 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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Frequently Asked Questions

How does the Stock Portfolio Calculator work?

Simply fill in the fields and press Calculate. One view of all your holdings — total value, gains, losses and how concentrated you really are.

What information do I need to provide?

Just the basics — Holdings (ticker, shares, buy price, current price), plus a few simple inputs. No account or signup is required; everything runs in your browser.

Is Stock Portfolio Calculator really free to use?

Yes — completely free, with no login, no watermarks and no limits. Bookmark it and share the URL with anyone who needs it.

How accurate is the estimate?

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.

Can I use it on my phone?

Absolutely. The tool is fully responsive and works smoothly on mobile, tablet and desktop browsers.

What should I keep in mind?

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.

Disclaimer: The Stock Portfolio Calculator is provided for educational and informational purposes only and does not constitute financial, investment, legal or tax advice. Results are estimates and may not reflect your complete financial situation. Always consult a qualified professional before making financial decisions.