Dollar-Cost Averaging Calculator
Simulate DCA: fixed periodic investment into a stock or fund.
What this measures
Dollar-cost averaging (DCA) means investing a fixed dollar amount at regular intervals regardless of price. Over time, you buy more shares when prices are low and fewer when prices are high — the average cost per share is generally lower than the arithmetic average of the prices themselves.
Formula & example
Enter your periodic contribution, number of periods, and starting + ending share price (assumes linear price change for a rough sim). The calculator shows total invested, shares accumulated, average cost per share, and final portfolio value. For a real backtest use historical price data — this is a planning aid, not a backtest.
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