How to Use This Calculator
- Add each of your buy entries — price paid and amount spent in dollars
- Click Add Entry for each additional purchase
- Enter the current price to see profit or loss
- Click Calculate DCA to get your average price and results
DCA Formula
Average Price = Total Amount Spent / Total Coins Bought
Coins Bought = Amount Spent / Buy Price
Total Spent = Sum of all purchase amounts in dollars
Total Coins = Sum of coins received from each purchase
P&L = (Current Price - Average Price) × Total Coins
DCA Example — Bitcoin
| Purchase | BTC Price | Amount Spent | BTC Received |
|---|---|---|---|
| January | $42,000 | $500 | 0.01190 |
| February | $38,000 | $500 | 0.01316 |
| March | $45,000 | $500 | 0.01111 |
| April | $35,000 | $500 | 0.01429 |
| Total | Avg: $39,130 | $2,000 | 0.05046 |
By buying at different prices the average cost is $39,130 — lower than 3 out of 4 purchase prices. This is the power of DCA.
DCA vs Lump Sum
| Strategy | Risk | Best When |
|---|---|---|
| DCA | Lower | Uncertain or volatile market |
| Lump Sum | Higher | Strong uptrend confirmed |
| DCA Winner | Bear markets, sideways markets, beginners | |
| Lump Sum Winner | Strong bull markets with clear trend | |
Best DCA Intervals
- Weekly — Best volatility smoothing, higher transaction fees
- Bi-weekly — Good balance between smoothing and fees
- Monthly — Lowest fees, slightly less smoothing
- Daily — Maximum smoothing, only for low-fee exchanges
Frequently Asked Questions
DCA stands for Dollar Cost Averaging. It is an investment strategy where you buy a fixed dollar amount of crypto at regular intervals regardless of price. This reduces the impact of volatility on your average purchase price over time.
Average Buy Price = Total Amount Spent / Total Coins Purchased. When you buy at different prices, dividing total investment by total coins gives your true average cost per coin — which is always lower than a simple average of prices.
DCA is widely considered the best strategy for long-term Bitcoin investors. It removes the stress of timing the market, reduces risk from buying at peaks, and historically produces strong returns over multi-year periods regardless of entry point.
Weekly DCA smooths out price volatility the most. Monthly DCA reduces transaction fees. Choose based on your budget and exchange fees. Consistency matters more than frequency — the most important thing is to keep buying regularly.
Lump sum investing means putting all your money in at once. DCA spreads purchases over time. In strong uptrends, lump sum outperforms. In volatile or bear markets, DCA significantly reduces risk and average cost. For most investors DCA is more sustainable psychologically.