Stock Average Calculator (Average Buy Price)
Calculator ToolsFind your average buy price and see the effect of buying more
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History
All history →Stock Average Calculator (Average Buy Price) — at a glance
Work out the real average price of a share you bought in several parts.
How to use it — step by step
Quantity and price of each buy, one per line.
Add each buy
One line per buy: quantity then price.
Add current price (optional)
To see profit or loss.
Add a planned buy (optional)
See your new average before buying.
Read the result
Average price, invested amount and P/L.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
How is the average calculated?+
Total money invested divided by total quantity bought.
Does it include brokerage?+
No. Add brokerage by increasing the price slightly if you want it included.
Can I use decimals?+
Yes, for both quantity and price.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.