What this calculator measures
Dollar-cost averaging (DCA) means purchasing a fixed monetary amount on a regular schedule. When Bitcoin’s price is lower, the same contribution buys more BTC; when it is higher, it buys less.
This backtest uses the historical price nearest each scheduled purchase date. The selected transaction fee is removed from every contribution before Bitcoin is purchased. Taxes, spreads, withdrawal fees and the value of your time are not included.
Important questions
Does a good historical result mean DCA will work again?
No. Backtests describe the past. Bitcoin remains volatile and can fall substantially.
Why compare with a lump sum?
It shows the trade-off between gradual exposure and putting the planned capital to work immediately. Neither approach is guaranteed to outperform.
Does the calculator store financial information?
No. Calculations run in your browser. Input values may be placed in a shareable URL, but no account or portfolio is created.