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Stock average-down calculator

Calculate the average purchase price after additional purchases.

How to use stock average-down calculator

Enter the price and quantity for each purchase. Add a current price to see unrealized profit or loss.

Good to know

Use one stock and currency. Fees, taxes, dividends and stock splits are excluded. This tool does not recommend additional purchases.

Worked example and interpretation

100 shares at 10,000 and 100 at 8,000 produce 200 shares costing 1,800,000, averaging 9,000. At a current price of 8,500 the unrealized loss is 100,000.

Before using the result

Average price equals total cost divided by quantity. Lowering the average can increase capital at risk. Fractional quantities are supported.

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