Crypto DCA Backtest Calculator

How it works

Coins = Σ (amount ÷ priceₜ) assuming a linear price path · Final value = coins × end price · Avg cost = invested ÷ coins

Dollar-cost averaging buys a fixed dollar amount each period, so you automatically acquire more coins when the price is low and fewer when it is high. This calculator assumes the price glides linearly from start to end across your periods — a simplified path, not real historical prices — and sums the coins bought at each step. The key insight it shows is that your average cost sits below the simple midpoint of start and end price, which is exactly why DCA smooths out entry timing.

Worked example

Invest $100 for 12 periods while price rises linearly from $20,000 to $40,000. Because early buys are cheaper, you accumulate ≈0.0416 coins for $1,200. At the $40,000 end price that is worth ≈$1,665, a ≈39% gain, with an average cost near $28,900 — below the $30,000 midpoint.

Frequently asked questions