What is dollar-cost averaging?
Dollar-cost averaging, or DCA, means investing a fixed amount on a regular schedule instead of trying to time a single perfect market entry.
Calculator Guide
DCA Calculator
Explore dollar-cost averaging with a monthly investment calculator built for recurring contributions, ETF examples, and long-term planning.
How DCA works
When prices are lower, the same monthly amount buys more shares. When prices are higher, it buys fewer shares. Over time, the calculator estimates accumulated shares and value.
DCA vs lump sum investing
Lump sum investing commits capital at once. DCA spreads purchases across time, which some investors prefer for discipline and risk management.
Monthly investment example
You can model a fixed monthly contribution, choose a start and end year, and compare invested capital with estimated ending value.
Open the main calculator
Use the interactive DCA Backtest and Compound Interest Calculator to model your own monthly investment scenario.
Open the main calculatorDCA and Compound Interest FAQ
What does a DCA calculator estimate?
It estimates total invested, shares accumulated, ending value, profit, and return for a recurring monthly investment scenario.
Is DCA always better than lump sum investing?
No. Each approach can perform differently depending on market timing, volatility, and the investor's behavior.
Can this use historical market data?
Yes. Where imported CSV data exists, the backtest uses historical monthly prices; otherwise it clearly labels sample data.
Educational disclaimer
This page is for educational purposes only and is not financial advice. Past performance does not guarantee future results.