Stock Average Calculator
Calculate the average purchase price after buying shares at two different prices.
Averaging down or up on a stock changes your effective purchase price. Lilu Baba's Stock Average Calculator works out your new average price and total invested amount across two buy lots.
How to use this calculator
- Enter the quantity and price of your first purchase.
- Enter the quantity and price of your second (averaging) purchase.
- Your new average price and total invested amount update instantly.
Average Price
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Total Quantity
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Total Invested
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FAQ
Stock Average Calculator — frequently asked questions
This version supports two lots. For more, average your first lots together, then use that combined average and quantity as your 'first buy' for the next lot.
No — this calculates the raw average purchase price only, excluding brokerage or other charges.