StockAvg

Stock, crypto and ETF average-cost calculator — weighted cost basis in seconds.

Your trades never leave your browser — all math runs locally.

Average Cost

Weighted average cost across multiple stock buys.

See how buying more at a lower price changes your average.

Dollar-cost averaging across recurring buys.

Weighted average including trading fees.

The cost basis used for taxes and profit.

Track average cost per holding by ticker.

Break-even and target sell price after averaging.

Average cost for crypto bought in several lots.

Blended average cost for ETF shares.

Average cost of option contracts.

Average entry across futures contracts.

Average cost across mutual fund shares.