DCA Calculator [Free Tool]
Plan a dollar-cost averaging strategy and watch regular, fixed contributions compound into a larger position. Removes the pressure of timing the market and keeps your investing on schedule.
Disclaimer: Trading financial instruments involves risk, and everything on this page is provided for educational purposes only. Nothing here is financial advice or a recommendation to buy or sell any instrument.
Final Balance
$78810.48
Total Invested
$60000.00
Total Profit
$17810.48
Cost-averaging smooths out volatility by investing a fixed amount on a regular schedule.
How is this calculated?
Final Balance grows with each contribution, compounded per period at the periodic rate.
Monthly rate = (1 + Annual Return)^(1/12) − 1 (equivalent monthly compounding).
Read the full user guide
Every parameter, formula, and worked example — a complete reference for this tool.
What is dollar-cost averaging (DCA)?
Dollar-cost averaging (DCA) is investing a fixed amount on a regular schedule, regardless of what the price is doing. When prices are low your money buys more; when they are high it buys less, and over time the average cost per unit smooths out the peaks and valleys. The real power is mostly behavioral: a plan removes the need to pick the perfect moment, which is the decision most investors get wrong. This calculator projects how a DCA plan could grow given your contribution, frequency, horizon, and an assumed return.
Key concepts
Fixed amount
The same dollar figure invested each period.
Average cost
The blend of prices you actually paid, weighted by units bought.
Emotional benefit
A schedule removes the pressure of picking the exact right moment.
A worked example with real numbers
- 1
Set the plan
You invest $500 every month for 12 months, assuming 6% annual growth on the accumulating balance.
- 2
Sum the contributions
Total invested is $500 × 12 = $6,000.
- 3
Apply the growth assumption
Each contribution compounds for a different number of months, and the earliest dollar grows longest — the projection shows the estimated final value above $6,000.
- 4
Interpret carefully
The exact figure depends on the assumed return, which is never guaranteed. The real takeaway is the discipline of regular, fixed contributions.
How to use it
Enter the investment plan
Amount per period, frequency, and horizon.
Enter expected return
An assumed growth rate for projection.
Read the projection
Total invested, estimated final value and growth.
The formula, step by step
DCA accumulation
Final value = Σ per-period contributions compounded over remaining periods
The exact schedule depends on contribution frequency.
Mistakes traders make
✗ Assuming DCA always beats investing a lump sum
✓In rising markets a lump sum often wins because it is invested sooner. DCA's value is reducing timing risk and regret, not maximizing returns.
✗ Using an optimistically high assumed return
✓The projection inherits your assumption. Test a conservative range rather than trusting a single bullish number.
✗ Confusing DCA with trading strategy
✓DCA is a long-term investing plan, not short-term trading. Active traders size positions from risk, not from a fixed schedule.
When this tool fits — and when it does not
Use it when
- ✓Building a long-term position with regular cash flow, like a monthly paycheck.
- ✓Entering a volatile asset gradually rather than all at once.
- ✓Removing the emotional decision of when to buy.
Skip it when
- ✗Maximizing return in a strong one-way uptrend, where earlier lump-sum wins.
- ✗Treating it as a short-term trading tactic.
- ✗Projecting with a return assumption you would not defend under pressure.
Practical tips that actually help
Automate it so the plan survives your moods
The biggest DCA benefit is behavioral. A fixed schedule that runs regardless of news is the whole point.
Revisit the amount, not the timing
Adjust the contribution as income changes, but let the schedule stay fixed — timing tweaks are how the discipline erodes.
Run several return scenarios
Project at a conservative, central, and optimistic rate. Seeing the spread makes the estimate honest.
Related & next steps
Frequently asked questions
Does DCA always outperform lump sum?▾
No. Lump sum has historically won more often in rising markets; DCA reduces timing risk and regret, not necessarily returns.
Is DCA a good fit for trading or only long-term investing?▾
It is designed for building a position over time with regular contributions, which suits long-term investing far better than short-term trading. Active traders usually size positions from risk instead of scheduling fixed buys.
What return assumption should I use in the projection?▾
Use a deliberately conservative range. The projection is only as honest as the rate you feed in, and an assumed return can never be guaranteed — so testing several scenarios beats trusting a single optimistic number.
Why does DCA lower the average price only sometimes?▾
It lowers average cost when the asset fluctuates and some purchases land below the eventual average. In a strong one-way uptrend, every later purchase costs more, so the average cost actually rises — DCA's smoothing helps most in choppy markets.
How do contributions and compounding interact in DCA?▾
Each contribution grows for a different length of time depending on when it entered. The earliest contributions compound longest, so the schedule and the assumed return together determine the final total.
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DCA projections use assumed returns and do not predict actual investment outcomes.
Disclaimer: The tools and content on this site are provided for educational purposes only and do not constitute investment advice. Trading and investing involve a substantial risk of loss, and past performance does not guarantee future results.