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Dollar-Cost Averaging Calculator

Calculate average cost per share and total return from regular fixed investments.

Investment Parameters

Periodic Investment Amount ($)

Number of Periods

Price Series (comma or newline separated — one price per period)

If fewer prices than periods are provided, the last price is repeated.

Total Invested

$6,000.00

Total Shares

52.0952

Avg Cost / Share

$115.17

Current Price

$135.00

Current Value

$7,032.85

Total Return

+$1,032.85 (+17.21%)

Period Breakdown

Period	Price	Shares Bought	Running Avg Cost
1	$100.00	5.0000	$100.00
2	$90.00	5.5556	$94.74
3	$110.00	4.5455	$99.33
4	$95.00	5.2632	$98.21
5	$120.00	4.1667	$101.91
6	$105.00	4.7619	$102.41
7	$130.00	3.8462	$105.62
8	$115.00	4.3478	$106.70
9	$140.00	3.5714	$109.60
10	$125.00	4.0000	$110.97
11	$150.00	3.3333	$113.66
12	$135.00	3.7037	$115.17

About Dollar-Cost Averaging Calculator

Dollar-cost averaging (DCA) is an investment strategy where you invest a fixed amount at regular intervals regardless of the asset price. When prices are low you buy more shares; when prices are high you buy fewer. Over time this smooths out the average cost per share and reduces the impact of volatility. Enter your periodic investment amount, how many periods you invest, and the price at each period to see your average cost per share, total return, and a full period-by-period breakdown. All calculations run locally in your browser.

Private & free — this tool runs entirely in your browser.