Stock Average Calculator

Calculate your weighted average purchase price across multiple buy transactions of the same stock. This is the break-even price — you need the stock to trade above this for you to be in profit.

About the Stock Average Calculator

Investors often "average down" by buying more shares when the price falls, lowering their average cost. This calculator instantly shows your new average after each additional purchase, along with the total investment and total quantity held.

Formula used:

Weighted average price = Total amount invested ÷ Total quantity purchased.

Frequently Asked Questions

Is averaging down always a good strategy?

Not necessarily. It lowers your break-even but increases exposure to a falling stock. Only average down when your conviction in the business is unchanged and you have done fresh analysis.

Does this match my broker's average price?

Yes — brokers calculate weighted average cost the same way for open positions. Their figure may include brokerage in the cost basis.

All figures are estimates for planning purposes only. Not investment, tax or legal advice. Verify current rates before making financial decisions.
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