Stock Market Average Calculator
Calculate your exact average purchase price and total investment cost after making multiple buys of the same stock.
Purchase Details
How to Use the Stock Average Calculator
When you buy shares of a stock multiple times at varying prices, it can be confusing to know exactly what your break-even price is. Our Stock Average Calculator instantly figures out your new average cost per share, helping you plan your target selling price.
Step-by-Step Guide
- First Purchase: Enter the number of shares and price per share of your initial buy.
- Add More Purchases: Click "+ Add Another Purchase" for every additional time you bought the stock.
- Enter Details: Input the shares and price for each subsequent buy.
- Calculate: Quickly see your new total average price and the total cost invested.
The Averaging Concept
The calculator uses a weighted average. The mathematical formula is quite simple:
Avg = Total Investment Cost ÷ Total Shares
- Total Cost: (Units 1 * Price 1) + (Units 2 * Price 2) + ...
- Total Shares: (Units 1 + Units 2 + ...)
Why Calculate Your Stock Average?
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Set Profit TargetsYou must know your exact break-even point before you can accurately set a sell limit order for profit.⚖️
Manage RiskSee exactly how much capital you have tied up in a single asset to prevent over-exposure.📉
Averaging DownSimulate future purchases to see how significantly a lower-priced buy will pull down your average.