From one calculation to every position
It remembers each buy you log, and quantifies your strategy after every trade.



Questions about Average Cost
What is a weighted average cost?
What each share cost you on average across all your buys: the total paid divided by the total shares. The app recalculates it as you type.
Can I test a buy before I make it?
Yes. Enter a hypothetical buy price and compare share counts side by side, then save the one you like as a planned buy.
Stock Average Cost Calculator is a calculation tool. Nothing in the app is financial advice.
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