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DCA vs Lump Sum Comparator

Compare Dollar Cost Averaging vs Lump Sum investing strategies side by side.

Results
Lump Sum Final Value
￥9,835,757
DCA Final Value
￥7,965,151
Lump Sum
Wins by ￥1,870,606
LSDCA

Yearly Breakdown

YearLump SumDCADifference
15,350,0005,134,407+215,593LS
25,724,5005,391,128+333,372LS
36,125,2155,660,684+464,531LS
46,553,9805,943,718+610,262LS
57,012,7596,240,904+771,855LS
67,503,6526,552,949+950,703LS
78,028,9076,880,597+1,148,310LS
88,590,9317,224,627+1,366,304LS
99,192,2967,585,858+1,606,438LS
109,835,7577,965,151+1,870,606LS

How It Works

This calculator compares two investment strategies for a lump sum of money: investing all at once (lump sum) vs. spreading the investments over several months (Dollar Cost Averaging, or DCA).

Lump sum compounds the full amount for the entire horizon. DCA delays part of the investment, so later contributions have less time to grow — but can buy at lower prices if the market drops during the DCA period.

Lump sum wins when markets trend up (more time invested = more returns).
DCA wins when markets drop during the DCA period (buying at lower prices).
Nobody knows the future — this tool lets you compare both scenarios with your own assumptions.

Disclaimer

This is for informational and educational purposes only. Past performance does not guarantee future results.

DCA vs Lump Sum Calculator: Guide

Intent
Compare Dollar Cost Averaging (DCA) vs Lump Sum investing strategies side by side. See which strategy wins for your investment scenario.
What it does
Compares two investment strategies — lump sum (invest all at once) vs DCA (invest gradually over months) — showing final values and which strategy wins.
Key features
Side-by-side strategy comparison, Winner highlight, Yearly breakdown with difference, DCA period adjustment
Privacy
Everything runs locally in your browser. No data is uploaded.
Best for
  • Deciding whether to invest a windfall all at once or spread it out
  • Understanding when DCA vs lump sum makes a difference
  • Visualizing the impact of gradual vs immediate investing
Why this tool
  • Clear side-by-side comparison with winner highlight
  • Adjustable DCA period to match your actual situation
  • Local-only: no sensitive financial data uploads

How to use

  1. 1Enter the total amount you want to invest.
  2. 2Set the expected annual return for lump sum and DCA strategies.
  3. 3Choose the DCA period (how many months to spread the investment).
  4. 4Set your investment horizon (how long you will hold).
  5. 5Review the side-by-side comparison and yearly table.

Common mistakes

  • Past performance does not indicate which strategy will win in the future.
  • Lump sum has higher historical success rates in rising markets, but higher volatility risk.
  • DCA reduces timing risk but sacrifices potential gains if markets rise during the DCA period.

Examples

Investing ¥3M over 12 months
Total: ¥3,000,000 Lump sum return: 7% DCA return: 6% DCA period: 12 months Years: 10 → Lump sum typically wins if markets trend up.
Short DCA period
Total: ¥1,000,000 DCA period: 6 months Years: 5 DCA helps reduce timing risk in volatile markets.

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