Average Cost Calculator
Average buy price for multiple purchases
Purchase History
Avg Cost Result
Average Buy Price
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Total Quantity
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Total Investment
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1차
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FAQ
What is average cost (average buy price)?
Average cost is the mean purchase price across multiple stock buys. It is calculated by dividing the total amount invested by the total number of shares purchased.
Why is dollar-cost averaging beneficial?
Spreading purchases over time smooths out price fluctuations. It reduces the risk of buying at a peak and lowers your average cost when prices dip.
Can I calculate more than 2 purchases?
This calculator currently supports up to 2 purchases. For 3 or more, you can use the Profit Calculator or the Dollar-Cost Avg Calculator together.
If my average cost is higher than the current price, am I at a loss?
Yes. When the current market price is below your average cost, you are in an unrealized loss position. Buying more shares below your average cost will bring it down.
Should I include commissions in the average cost?
For a precise figure, yes. Add total commissions paid to the total purchase amount, then divide by total shares: (Total Amount + Total Fees) ÷ Total Shares.
What is the optimal split ratio when averaging in?
There is no fixed formula. A common approach is to split equally over 3–5 purchases, or to increase position size on larger dips using a pyramid strategy.
Is average cost the same as break-even price (BEP)?
No. Average cost is the pure mean buy price, while BEP is the minimum sell price needed to break even after fees and taxes. BEP is slightly higher than average cost.