Crypto
Crypto Average Buy Price Calculator
Calculate weighted average crypto purchase cost and a fee-adjusted break-even price across multiple buys. Adjust the example inputs to explore how different assumptions affect the estimate.
Your scenario
Adjust the numbers
Start with the example values or enter your own assumptions.
This changes number formatting only. It does not convert amounts between currencies; enter all amounts in the selected currency.
Purchase transactions
Percentage fees are treated as cash costs in the selected currency. Transactions stay in this browser; no exchange, wallet, or live price connection is used.
Based on your inputs
Your estimate
Educational estimate only. Actual terms, taxes, fees, and returns may differ.
How to use this calculator
Add each purchase with its execution price, quantity, and percentage buy fee. Enter the percentage sale fee to estimate the price needed to recover purchase costs after a sale.
How the calculation works
Total quantity = sum of transaction quantities. Total invested = sum of (price × quantity × (1 + transaction fee)). Weighted average cost per unit = total invested ÷ total quantity. Fee-adjusted break-even sale price = average cost ÷ (1 − sale fee).
Worked example
Buying 0.2 coin at $30,000 and 0.1 coin at $36,000 with no fees gives 0.3 coin and $9,600 invested. Weighted average cost is $32,000 per coin, not the simple average of the two prices ($33,000).
Assumptions and limitations
Uses user-entered fills and percentage fees. It excludes fixed charges, spread, slippage, network costs, and taxes. This weighted average is a planning estimate and is not a determination of tax cost basis or a broker statement.
Frequently asked questions
Why is the weighted average different from a simple average?
Each execution price is weighted by the quantity bought, so a larger purchase affects the result more.
Can I enter more than two purchases?
Yes. Add as many as 100 purchase rows.
Does the result determine my tax basis?
No. Tax rules and accounting methods depend on jurisdiction and records; this tool does not provide tax accounting.
Sources and further reading
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Educational tool only. It does not provide personalized financial, tax, or legal advice.