Crypto DCA Calculator

How to use the crypto DCA calculator

1. Pick a coin and how often you would buy: every week, every two weeks or every month.
2. Enter the amount per purchase in US dollars, for example $100.
3. Choose the first purchase date, or tap a shortcut. The calculator then buys on that schedule up to today, using the real closing price on each purchase day.
4. Read the result: total invested, what the coins are worth now, your average buy price, and how the same money would have done as a single purchase on day one.

What dollar-cost averaging is

Dollar-cost averaging (DCA) means investing a fixed amount of money on a fixed schedule, whatever the price is that day. When the price is low your fixed amount buys more coins, and when it is high it buys fewer. You never have to decide whether today is a good day to buy.

How the result is calculated

Coins bought each time = amount per purchase ÷ price that day
Average buy price = total invested ÷ total coins

A worked example with three monthly purchases of $100: at $50,000 you get 0.002 BTC, at $40,000 you get 0.0025 BTC, and at $60,000 you get 0.001667 BTC. That is 0.006167 BTC for $300, an average buy price of about $48,649. The plain average of the three prices is $50,000, so the fixed-amount schedule paid about $1,351 less per coin, because more coins were bought in the cheap month.

DCA or one lump sum?

The last line of the result shows what the same total would be worth if it had all been invested on the first day. In a market that mostly rose, the lump sum usually wins, because more money was invested earlier. In a market that fell first and recovered later, DCA usually wins, because many purchases were made at lower prices. Most people do not have the full amount on day one, which is the practical reason DCA exists: it matches how money arrives, from a salary, month by month.

DCA lowers the risk of buying everything at a peak. It does not remove the risk of the asset itself: if a coin keeps falling, regular purchases simply build a larger losing position.

Want to test one purchase on a past date? The crypto investment calculator shows what it would be worth today. Planning a single trade instead? Use the crypto profit calculator to work out a trade from your own buy and sell prices, including exchange fees. Stacking small amounts of Bitcoin? The satoshi calculator shows how many sats each purchase buys.

Frequently asked questions

Where do the prices come from?

From Coinbase’s public market data. Each purchase uses that day’s closing price in US dollars, with days measured in UTC.

What happens if a purchase date has no price?

The purchase is made on the next day that has one. This matters for coins that were not traded on Coinbase for a period.

Does the calculator include fees?

No. Exchanges usually charge a fee on every purchase, and small recurring buys can carry a higher percentage fee. Your real result would be a little lower.

Is weekly or monthly DCA better?

Over several years the difference is usually small. Switch the frequency above to compare them for any coin and period. Fewer, larger purchases can cost less in fees.

Does DCA guarantee a profit?

No. It spreads your entry price over time, but the result still depends on where the price ends up.

This tool is for information only and is not financial advice. Crypto prices are volatile and past performance does not predict future results.