Aktien-Durchschnittspreis-Rechner

Überblick

When you buy the same stock at several different prices, your average cost per share — not any single purchase price — determines your profit or loss. This calculator adds up multiple buys and returns the total shares, total cost, and weighted average price, so you always know your true break-even. It runs in your browser and stores nothing.

So gehts (Schritt für Schritt)

1. 1

   Enter each purchase

   Add the number of shares and price for every buy you made.

2. 2

   Add more rows as needed

   Include every transaction so the average reflects your full position.

3. 3

   Read your average price

   This weighted average is your break-even price per share.

Funktionsweise

The average price is a weighted average: total amount invested ÷ total shares bought, not a simple average of the prices. Buying more shares at a lower price pulls your average down (often called averaging down); buying at higher prices pulls it up. Knowing this number tells you exactly what price the stock must reach for you to break even.

Wann verwenden

Tracking your cost basis after several purchases of the same stock. Deciding whether averaging down meaningfully lowers your break-even. Planning a target sell price relative to your true average cost.

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