How does this differ from a simple arithmetic average?

A simple average just adds the price tags (e.g., $50,000 + $70,000 / 2 = $60,000), ignoring how much capital you actually allocated at each price level, which leads to completely misleading breakeven targets.

Cost Basis Engine

Crypto Average Buy Price Calculator

Enter multiple buy orders to calculate your exact weighted average cost basis, total coins held, and cash investment.

Purchase Orders

Buy Price ($)

Amount / Coins

Buy Price ($)

Amount / Coins

Buy Price ($)

Amount / Coins

Weighted Cost Basis

$64,800.00

Average entry price per 1 full coin

Total Coins Accumulated:1 units

Total Cash Outlay:$64,800.00

Breakeven (0.1% Fee):$64,864.86

Formula: ∑(Price_i × Units_i) ÷ ∑(Units_i)

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Average Buy Price FAQ

A weighted average accounts for the fact that buying 1 BTC at $50,000 has five times the impact on your portfolio cost basis as buying 0.2 BTC at $70,000. It computes: Total Dollar Spent divided by Total Coins Acquired.