Crypto Average Cost Calculator
Find your average entry price and fees across every buy in one place
Enter your first buy price and amount, then add as many follow-up purchases as you need, and this calculator works out your true average cost basis with exchange fees factored in. It's built for anyone dollar-cost averaging or averaging down who wants an accurate picture of what their position actually cost. All math runs in your browser, and your trade history is never sent to a server.
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Enter your first buy price and the quantity you bought
- Enter your exchange's trading fee rate (%)
- Use the "Add Purchase" button to enter the price and quantity of each additional buy
- Review your average price with and without fees, total holdings, and total cost, then copy it with the button
FAQ
- How are fees factored in?
- The fee rate (%) you enter is applied to each purchase amount to get your total fees, and the tool shows your average cost both with and without fees included.
- How many purchases can I add?
- There's no limit. Each click of "Add Purchase" adds another row, and you can remove any row you don't need with its delete button.
- Is my purchase data saved or transmitted?
- No. Everything is calculated instantly in your browser and nothing is sent to or stored on a server.