Stock Average Calculator
Calculate average cost per share, total cost basis, and breakeven after multiple purchases.
Local calculation model
LocalPurchase lots stay in this browser session
No adviceCost-basis math is not a buy or sell recommendation
PrivateSave only stores the stock plan locally when you choose it
Purchase lots
Enter shares and price per share for each purchase lot.
Cost basis summary
Run calculation to see average cost and breakeven price.
Waiting for calculationCalculate first to review the purchase lots.