What would a steady weekly or monthly buy be worth today? Backtest dollar-cost averaging against real historical prices.
Dollar-cost averaging (DCA) is the simplest investing strategy there is: buy a fixed dollar amount of an asset on a fixed schedule, no matter what the price is doing. When the price drops, your fixed amount buys more coins; when it rises, it buys fewer. Over time that produces an average entry price that smooths out crypto's notorious swings — and, just as important, it removes the emotional guesswork of trying to time tops and bottoms.
The calculator above replays your plan against genuine market history. Choose a coin, how much you would invest, how often, and for how long. Every simulated purchase is executed at that day's real market price, the coins are added up, and the whole stack is valued at today's live price. You get five headline numbers — total invested, value today, profit or loss, coins accumulated and average cost — plus a chart showing how your invested capital compares with the portfolio's value over the entire period.
A backtest shows one path through history, not the future. A green result means the schedule you tested happened to end in profit at today's price; the same schedule started a year earlier or later could look very different. Fees also matter in real life: exchanges charge trading fees and spreads that a simulation ignores, which is one reason to compare exchange prices before setting up a recurring buy. And because DCA runs on discipline rather than prediction, most people pair it with a long horizon and an amount they can genuinely spare every period.
Dollar-cost averaging means investing a fixed amount at a regular interval — say $50 every week — regardless of price. You automatically buy more units when prices are low and fewer when they are high, which smooths out your average entry price and removes the pressure of timing the market.
Pick a coin, an amount, a frequency and a time period. The calculator replays that schedule against real daily market prices: each simulated purchase converts your amount into coins at that day's price, then everything is valued at today's price to show your total invested, current value, profit or loss, and average cost per coin.
Neither always wins. A lump sum invested before a rally outperforms, while DCA cushions you when prices fall after you start. DCA's real advantages are discipline and reduced timing risk — which is why it suits volatile assets like crypto. Past results shown here do not guarantee future returns.
Prices come from CoinGecko's daily market data, so each simulated buy uses that day's market price. Real-world results would differ slightly due to exchange fees, spreads and the exact minute you buy — treat the output as a close estimate, not an account statement.
Historical prices from Binance / Coinbase public market data, with CoinGecko fallback. Simulations exclude fees and spreads. Informational only — not financial advice.