How do I use the Stock Profit Calculator?

Enter the buy price and sell price per share. Enter the number of shares traded. Optionally add buy and sell commissions/fees. Set the capital gains tax rate if applicable. Click Calculate Profit to see the full breakdown.

Is the Stock Profit Calculator free?

Yes, the Stock Profit Calculator is completely free. It runs entirely in your browser with no signup, no download, and no data sent to any server.

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Stock Profit Calculator

Calculate stock trading profit or loss including commissions, fees, and capital gains tax. See total return and break-even price.

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Stock Profit Calculator

Calculate stock trading profit or loss including commissions and fees. See total return, percentage gain, and break-even price.

Buy Price ($)

Sell Price ($)

Number of Shares

Buy Commission ($)

Sell Commission ($)

Capital Gains Tax Rate (%)

How to use

How to Use the Stock Profit Calculator

1 Enter the buy price and sell price per share.
2 Enter the number of shares traded.
3 Optionally add buy and sell commissions/fees.
4 Set the capital gains tax rate if applicable.
5 Click Calculate Profit to see the full breakdown.

The Stock Profit Calculator shows your net gain or loss from a stock trade, accounting for commissions and taxes. It calculates total cost (shares × buy price + commission), total revenue (shares × sell price - commission), and net profit after capital gains tax.

The break-even price shows the minimum sell price needed to cover your total costs including all fees. Capital gains tax applies only to profits — if you sell at a loss, no tax is owed. Short-term capital gains (held <1 year) are taxed as ordinary income; long-term gains have lower rates.

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