Crypto Average Buy Price Calculator

A fast three-step workflow

How to use the crypto average buy price calculator

1
Enter the known information
Add only the values or source text the calculation needs. Useful examples and safe defaults are already selected.
2
Adjust the assumptions
Use the extra controls to match your real task instead of accepting a hidden one-size-fits-all assumption.
3
Review the complete result
Check the main answer, supporting values and method before copying, downloading or acting on the result.

What makes this tool more useful

Paste multiple purchases as price, quantity and optional fee rows. The weighted result avoids the common mistake of averaging prices without position size.

Unlimited pasted purchasesIncluded in the same responsive workspace, with no account wall or separate result page.

Weighted average entryIncluded in the same responsive workspace, with no account wall or separate result page.

Fees included in cost basisIncluded in the same responsive workspace, with no account wall or separate result page.

Target-price and unrealized P&LIncluded in the same responsive workspace, with no account wall or separate result page.

How the calculation works

Total cost is the sum of price multiplied by quantity plus fees. Weighted average entry equals total cost divided by total acquired quantity.

Combine fills from multiple exchanges or calculate the effect of adding another purchase to an existing position.

Important financial information

This calculator provides an educational estimate from the values you enter. It does not use live prices, predict returns or provide investment, tax or legal advice. Verify exchange rules, fees, rates and product terms before making a financial decision.

Private, fast and mobile-ready

The workspace runs with browser JavaScript and does not submit entered values to a Rantey calculation endpoint. Controls use readable labels, large touch targets and responsive result panels for narrow screens.

Frequently asked questions