#1014 · Marketing Tool

Amazon CAC Calculator

Measure Amazon customer acquisition cost from ad spend and promotions, then compare CAC with gross profit to decide whether your PPC strategy can scale profitably.

Calculator

Decision inputs
$
$
customers
$
Ad space

How to use this calculator

Enter Amazon ads, promotion cost, new customers, and gross profit per first order. The calculator estimates CAC and payback difficulty.

What the result means

CAC is sustainable when customer profit or expected lifetime value is meaningfully higher than the cost to acquire that customer.

CAC = (Ad spend + Promotion cost) ÷ New customers. Payback orders = CAC ÷ Average gross profit per order.

For repeat-purchase products, compare CAC to lifetime gross profit, not just first-order margin.

Example calculation

If ad spend is $3,000, promotions are $500, and 150 new customers are acquired, CAC is $23.33.

Tips for better results

  • Improve listing conversion before increasing PPC spend.
  • Separate new customer CAC from returning customer orders.
  • Track CAC by campaign and product line.

FAQ

What is a good Amazon CAC?

A good CAC is usually one that can be recovered within the first purchase or a small number of repeat orders.

How much should Amazon sellers spend to acquire one customer?

The affordable amount depends on gross margin, repeat purchase rate, and customer lifetime value.

How do I reduce Amazon customer acquisition costs?

Improve listing conversion, keyword targeting, review quality, pricing, and campaign structure.

Is Amazon PPC included in CAC?

Yes. Amazon PPC spend is usually the main acquisition cost and should be included in CAC.

What LTV to CAC ratio is considered healthy?

Many businesses target at least 3:1 LTV to CAC, with higher ratios providing more room to scale.

Decision module

MetricUse
CACCost to acquire one new customer.
Payback ordersOrders needed to recover acquisition cost.
Health scoreCompares CAC against order profit.

Browse more calculators

Category hubs