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Crypto average price calculator

Several purchases of the same coin at different prices, one average cost. Add each buy and see what you paid per coin, where break-even is and what price you need for the profit you want.

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Your average cost is $97.79 a coin across 3 purchases. You need to sell above $98.28 to get your money back after fees.

Total invested
$1,500.00
3 purchases
Coins held
15.3396
after buying fees
Profit or loss now
+$178.92
11.9% at $110.00
Price for +20%
$117.93
after selling fee

Prices paid ranged from $80.00 to $120.00. Break-even and the target price include the fee on selling as well as on buying.

How the calculator works

For each purchase it takes the fee off the amount spent, works out the coins that remain at the price you paid, and adds them up. The average cost is the total spent divided by the total coins, so it already carries the buying fees. Break-even is that average divided by what is left of a dollar after the selling fee, and the target price multiplies break-even by the profit you want.

Enter every purchase of one coin in the same currency. Purchases made at different exchanges can all go in; the only thing that matters is the price and what you spent.

Questions

How do I calculate my average buy price?
Divide the total money you spent by the total number of coins you got. Example: $100 at $10 a coin buys 10 coins and $100 at $20 buys 5, so $200 bought 15 coins and the average cost is $200 ÷ 15 = $13.33. The calculator does this for any number of purchases.
Why isn't it just the average of the prices?
Because you bought more coins when the price was low. The simple average of $10 and $20 is $15, but you hold more coins bought at $10, so the true cost per coin is lower, $13.33 in the example. The average cost is weighted by the number of coins.
Do fees change my average cost?
Yes. A fee on each purchase means you get fewer coins for the money, which raises what each coin cost you. The calculator takes the fee out of every purchase and counts it in the average cost, and it includes the selling fee in the break-even price.
What is the break-even price?
The price you must sell at to get back exactly what you put in, after the fee on selling. It is a little higher than the average cost whenever a fee applies, because selling costs money too.
Does buying regularly lower my average cost?
Buying the same amount at regular intervals puts more of your money in at low prices than at high ones, which pulls the average cost below the simple average of the prices. It does not make a loss impossible: if the price keeps falling, the average cost stays above it. The DCA calculator shows how a regular plan would have done in practice.
Is this the cost basis my tax authority uses?
Not necessarily. Many countries require a specific method for matching sales to purchases, such as first-in first-out, rather than an average cost. This calculator shows the average cost of what you entered and is not tax advice; check the rules where you live.

Disclaimer: This calculator is educational and does not constitute financial advice or tax advice. It assumes the same percentage fee on every purchase and on the sale, and it does not model taxes, spreads or slippage. Cryptocurrency prices are volatile; never invest more than you can afford to lose.