TradePortfolio

DCA Calculator

Calculate the results of dollar-cost averaging into an asset over time.

$
$
$
Total Invested
$6,000
Current Value
$8,125
Total Units
0.125000
PnL
+$2,125
Return
+35.42%
Avg Cost Basis
$48,000

Formula

Average Cost Basis
DCA Return

DCA often outperforms lump sum in volatile, sideways markets because you buy more units when prices are low.

Examples

Example 1: $500/month into BTC for 12 months
  • Total invested = $500 × 12 = $6,000
  • If BTC ranged $40K–$60K, avg price might be ~$48,000
  • Total BTC = $6,000 / $48,000 = 0.125 BTC
  • If BTC is now $65,000: value = 0.125 × $65,000 = $8,125
Invested $6,000, now worth $8,125 — a 35.4% return with DCA.
Example 2: $100/week into ETH for 6 months
  • Total invested = $100 × 26 weeks = $2,600
  • If ETH averaged $3,000: total ETH = 0.867
  • If ETH is now $3,200: value = 0.867 × $3,200 = $2,773
Invested $2,600, now worth $2,773 — a 6.7% return.
Example 3: $1,000/month into SOL during a bear market
  • 12 months, SOL ranged $20–$40
  • Average price: ~$28
  • Total SOL = $12,000 / $28 = 428.6 SOL
  • If SOL recovers to $150: value = $64,286
Invested $12,000 in the bear market, worth $64,286 at recovery — 435% return.

Key Concepts

What is Dollar Cost Averaging?

DCA means investing a fixed dollar amount at regular intervals regardless of price. You buy more when prices are low and less when they're high, which averages out your entry price over time.

DCA vs Lump Sum

Studies show lump sum investing beats DCA about 2/3 of the time in rising markets. But DCA significantly reduces the risk of buying at the worst possible time and is psychologically easier to execute.

DCA in Volatile Markets

DCA shines in volatile, range-bound markets. The more the price fluctuates, the more you benefit from buying dips. In a steadily rising market, DCA underperforms lump sum.

Frequency Matters Less Than You Think

Whether you DCA daily, weekly, or monthly makes little difference over long periods. The total amount invested and the holding period matter far more than the interval between purchases.

When to Stop DCA

DCA is an accumulation strategy. Once you've reached your target allocation or the investment thesis changes, it's okay to stop. Some traders DCA out (sell gradually) as well.

Tax Implications

Each DCA purchase creates a separate tax lot with its own cost basis. When selling, you can use specific lot identification (FIFO, LIFO, etc.) to optimize tax outcomes.

How Dollar Cost Averaging Works

Dollar cost averaging removes the pressure of timing the market. Instead of trying to buy the dip perfectly, you invest a fixed amount on a regular schedule and let the math work in your favor over time.

The key insight is that when prices drop, your fixed dollar amount buys more units. When prices rise, it buys fewer. This natural weighting toward lower prices results in an average cost that's typically below the simple average of all prices during the period.

DCA is especially powerful during bear markets, when it feels most counterintuitive to keep buying. The units accumulated at low prices become enormously valuable during the subsequent recovery.

Frequently Asked Questions

Is DCA better than buying all at once?

In markets with a long-term upward trend, lump sum beats DCA more often than not. But DCA provides emotional comfort and protects against buying at the peak. It's a trade-off between expected returns and risk management.

How often should I DCA?

Weekly or monthly are both fine. The frequency matters less than consistency and total amount. Choose a schedule that matches your income flow (e.g., right after each paycheck).

Should I stop DCA if the price drops a lot?

If your thesis hasn't changed, a price drop is actually good for DCA — you're buying more units cheaper. Stopping during a crash defeats the purpose. Only stop if the fundamental reason you're investing has changed.