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Stock Position Size Calculator - Risk Based Share Sizing

Estimate share quantity from account size, risk percentage, entry price, and stop price.

Risk control

Stock Position Size Calculator

Estimate share quantity from account size, risk percentage, entry price, and stop price.

Account size
Risk %
Entry price
Stop price
Risk amount$100.00Risk / share$5.00Position size20 sharesCapital used$2,000.00

For education and planning only. This tool does not provide investment, tax, or financial advice. Verify assumptions and consult a qualified professional for decisions involving money.

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How the stock position size calculator works

Enter the stock values requested by the calculator.

The result updates in your browser using the values you entered.

Review the result as informational planning data, not investment advice.

Frequently Asked Questions

Is this investment advice?

No. This tool is for education and planning only. It does not recommend buying, selling, or holding any security.

Does it use live market data?

No. This calculator uses the numbers you enter and does not fetch live quotes.