Stock Average Calculator
Calculate your average cost per share across multiple purchases. Add as many buys as you like โ see your total investment, average price, current P&L, and break-even price.
๐ Stock Average Calculator
Enter each purchase โ shares and price paid. Add as many rows as needed. Then enter the current price to see your profit or loss.
| # | Shares | Price Paid per Share |
|---|
What Is a Stock Average Calculator?
This free stock average calculator โ also called an average down calculator or cost basis calculator โ calculates your average cost per share across multiple purchases of the same stock, ETF, or crypto. Enter each buy trade with its share count and price, and this stock average calculator instantly shows your average cost, total investment, current portfolio value, and your profit or loss at the current market price.
In fact, tracking your average cost per share is one of the most important things any investor does. Without knowing your average cost basis, you cannot accurately assess whether a position is profitable, make averaging down decisions, or calculate capital gains tax. This stock average calculator solves all of that in one place.
How Does This Stock Average Calculator Work?
Total Invested = ฮฃ (Shares ร Price) for each purchase
Current Value = Total Shares ร Current Market Price
Profit / Loss = Current Value โ Total Invested
Return % = (Current Value โ Total Invested) รท Total Invested ร 100
Break-Even Price = Total Invested รท Total Shares
This stock average calculator uses the weighted average cost method โ the standard method for calculating average cost basis. Each purchase is weighted by the number of shares, so a larger purchase has more influence on the average than a smaller one.
What Is Averaging Down?
Averaging down means buying more shares of a stock after its price has fallen, which lowers your average cost per share. This stock average calculator is ideal for planning averaging-down trades โ enter your existing holdings, then add a hypothetical new purchase at the lower price to see how it changes your average cost and break-even point. However, averaging down only works if the stock eventually recovers โ be careful not to average down into a permanently declining stock.
Stock Average Calculator โ Frequently Asked Questions
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