📊 Stock Average Calculator — Cost Basis

Calculate your average cost basis per share when buying a stock at multiple prices.

Enter up to 6 purchase transactions.

#	Shares	Price per Share ($)
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Current Price ($) — for unrealized P&L

Dollar Cost Averaging

Buying more shares when the price drops lowers your average cost basis. This is the power of DCA — you automatically buy more when cheaper. If a stock drops 50% and you double your position, your new average is 25% below your original purchase, not 50%.

Cost BasisStock AverageDCADollar Cost AveragingUnrealized P&L

📊 Stock Average Calculator — Cost Basis

Average Cost Basis:

Dollar Cost Averaging

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