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How to Use the Stock Average Calculator
Find your average cost per share after buying at multiple prices.
- Enter each purchase: number of shares and price.
- Add as many buys as you need.
- See your average cost and total invested.
Average Cost Formula
Average Price
Avg = Total Cost / Total Shares
Sum the money spent and divide by total shares owned.
Example:
Input: 10 @ $100 + 10 @ $80
Calculation: 1,800 / 20
Result: $90 per share
Real-World Use Cases
Dollar-Cost Averaging
Track your blended cost across recurring buys.
Averaging Down
See how adding shares at a lower price changes your break-even.
Tips
Tips
- A lower average cost lowers your break-even price.
- Averaging down a falling stock can increase risk — know the company.
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