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Trading & Investing

Stock Average Calculator

Calculate weighted average buy price after multiple stock purchases at different prices.

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Why use Stock Average Calculator?

Calculate weighted average buy price after multiple stock purchases at different prices.

  • What this is forCalculate weighted average buy price after multiple stock purchases at different prices.
  • How it calculatesEnter quantity and buy price for up to three purchase lots.
  • Share your inputsThe link keeps your Stock Average numbers — bookmark it or send to family, HR, or an advisor.
  • Good to knowTrading and investing involve risk. You can lose money. Estimates only — not personal financial, tax, or legal advice.

Purchase 1

110000
$1$100,000

Purchase 2

110000
$1$100,000

Purchase 3 (optional)

010000
$0$100,000

Total Shares

30

Total Cost

$4,000

Average Buy Price

$133

Share & export

Download or share with your numbers saved in the link

Report an issue with this calculator

How Stock Average Calculator Works

Enter quantity and buy price for up to three purchase lots. Average price = total cost / total quantity across all lots.

Frequently Asked Questions

Why calculate average buy price?

When you buy the same stock at different prices, the average helps you know your breakeven and true gain/loss.

Does this work for mutual funds?

Yes — the same weighted-average math applies to multiple MF purchases at different NAVs.

Disclaimer

  • This calculator gives you an estimate only. It is not a promise of exact results.
  • This is general information, not personal financial, tax, or legal advice.
  • You are responsible for your own decisions. Talk to a qualified professional when it matters.
  • Trading and investing involve risk. You can lose money.

Full site disclaimer

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