Stock Average Down Calculator

See your new blended cost basis and breakeven after buying more at a lower price.

The stock average down calculator shows how additional purchases at lower prices reduce your cost basis. Add each buy as a row and get your new breakeven instantly.

Purchases
SharesPrice / share
sh
$
sh
$
Position summary
Average cost per share
$0.00
Total shares0
Total cost$0.00
Current portfolio value$0.00
Gain / loss$0.00

How it works

1
Add your original position

Enter shares and the original price on row one.

2
Add each average-down buy

Every additional purchase gets its own row with shares and the lower price.

3
See your new breakeven

The result card shows your blended average cost and current gain or loss.

Frequently asked questions

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