Cost basis is the total amount you paid for an investment including purchase price and fees. It's used to calculate capital gains for tax purposes.

How is ROI calculated for stocks?

ROI = (Net Profit / Cost Basis) × 100. Net profit = sale proceeds minus cost basis (including all fees).

Stock Profit/Loss Calculator

Enter shares, buy price, and sell price to calculate stock profit, loss, and ROI.

Enter your shares, buy price, and sell price to calculate your exact stock profit or loss including trading fees. See your net gain, percentage return on investment, and break-even price for any stock trade.

Last reviewed: April 2026Report an error

Number of Shares

Buy Price Per Share ($)

Sell/Current Price Per Share ($)

Fees (Buy + Sell $)

Net Profit / Loss

$2,500.00

Cost basis: $5,000.00 → Sale proceeds: $7,500.00 = $2,500.00 (50.00% ROI). Break-even price: $50.00.

Cost Basis

$5,000.00

Gross Profit

$2,500.00

Net Profit

$2,500.00

ROI

50.00%

How to Use This Stock P&L Calculator

Enter the number of shares you bought.
Enter the price per share you paid (buy price).
Enter the current or sale price per share.
Optionally add buy and sell fees (commissions).
Read your net profit/loss, ROI %, and break-even price.

Frequently Asked Questions

: Cost basis is the total amount you paid for an investment including purchase price and fees. It's used to calculate capital gains for tax purposes.
: ROI = (Net Profit / Cost Basis) × 100. Net profit = sale proceeds minus cost basis (including all fees).

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Stock Profit/Loss Calculator

How to Use This Stock P&L Calculator

Frequently Asked Questions

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