#109 · E-commerce Tool

Amazon CAC Calculator

Calculate Amazon customer acquisition cost from PPC spend, promotional spend, and new customers or first-time buyers.

Your numbers

Amazon CAC
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How to use this Amazon CAC Calculator

Enter your marketplace assumptions and review the result before changing price, discounts, advertising, shipping, or inventory decisions.

Formula

CAC = Total Acquisition Spend ÷ New Customers

CAC should be compared against first-order profit and lifetime value. A high CAC can still work if repeat purchases are strong.

This is an independent planning calculator. Verify final marketplace, payment, shipping, and tax details inside your seller dashboard.

What this calculator includes

  • Combines PPC spend, promotion cost, and external traffic cost.
  • Calculates CAC and payback orders using first-order profit.
  • Benchmarks CAC as efficient, manageable, or high based on payback.

FAQ

What does this calculator estimate?

Calculate Amazon customer acquisition cost from PPC spend, promotional spend, and new customers or first-time buyers.

What formula does it use?

CAC = Total Acquisition Spend ÷ New Customers

Is this an official marketplace fee quote?

No. This calculator uses your inputs for planning. Actual Amazon, Shopify, payment, shipping, and tax rules can vary by market, category, plan, and time.

What should I check next?

Review profit, fees, shipping, conversion, inventory, returns, and repeat purchasing together before changing price or spend.

CAC benchmark note

This calculator includes PPC Spend and Promotions when estimating acquisition cost. Use the result as a simple benchmark: Low CAC is easier to recover from margin, while High CAC needs repeat purchases or stronger conversion.