PHRASE IT / FREE SEO TOOL
SEO CAC calculator.
See what each new customer costs.
Find out what acquiring a new customer through organic search costs. Use recorded costs and customers, or explore an editable planning scenario.
Compare channels and save the figures behind your result. Add a cost breakdown or your customer economics when you want a closer look.
START WITH THE SAME PERIOD
$300
Per customer in the editable example: $9,000 in SEO costs ÷ 30 new customers.
Use your own costs and new organic customers to calculate your result.
Recorded figures
Editable scenarios
Your costs → Your customers → Your SEO CAC
01 / USE THE TOOL
Calculate your SEO CAC
Start with your total SEO acquisition cost and new organic customers for the same period. Open the optional sections for a cost breakdown, channel comparison or customer economics.
Download your report or print it before closing or refreshing the page.
02 / KEEP THE COMPARISON USEFUL
What belongs in your SEO CAC?
Count the costs once
Include the SEO share of agency or consulting fees, content and research, design, internal time, tools, development and sales activity. If your package includes content or tools, count those costs once.
Use new paying customers
An enquiry may never close, and an existing customer can place several orders. Use new customers attributed to organic search for the costs and period you are measuring.
Compare the same coverage
Record which costs and attribution rules you use. Apply the same coverage to other channels, then compare acquisition cost alongside margin, customer value and your payback target.
SEO CAC = acquisition costs allocated to SEO ÷ new customers attributed to organic search.
03 / CHOOSE YOUR VIEW
Use the figures that fit your decision.
Start with recorded performance or plan a scenario, then add the comparisons that help you decide what to do next.
| View | Start with | Use it to |
|---|---|---|
| Actual | Recorded SEO costs and new organic customers | Calculate acquisition cost for your chosen period. |
| Plan | Visitors and conversion rates | Explore estimated leads, customers and acquisition cost. |
| Channel comparison | One or two other channels with consistent cost coverage | Compare the cost of acquiring a customer. |
| Customer economics | Your revenue, margin, lifetime and payback target | Review gross-profit economics alongside acquisition cost. |
Choose a currency label to match your figures. Changing the currency does not convert the amounts.
04 / USE IT WELL
Questions about your SEO CAC
How is customer acquisition cost calculated?
Divide acquisition costs allocated to SEO by new customers attributed to organic search. If you spend $9,000 across three months and acquire 30 new customers in the same scope, SEO CAC is $300 per customer.
What is a good CAC?
A useful CAC depends on your margin, customer value, cash flow and growth goals. Compare channels with consistent attribution and cost coverage, then check how much gross profit a customer contributes. The optional economics section uses your own payback target.
How do I handle a long sales cycle?
A longer reporting period can reduce timing noise. A matched cohort follows a defined group of organic visitors or leads through to acquired customers and pairs those customers with the costs for that group. Apply the same rule to every channel.
Does a lower CAC mean more profit?
CAC measures acquisition cost per customer. Check customer value, gross profit and total channel performance alongside it. A changing CAC can reflect spend, conversion, customer mix and attribution; it does not necessarily fall as SEO matures.
How do I save my figures?
Choose Download report for a readable text report or Print / save PDF. Entries stay in the current page and are cleared by a refresh or Reset all. For help planning return, use the ecommerce SEO ROI calculator.
05 / YOUR NEXT STEP
Turn the result into your next SEO decision.
Review whether your spend supports the pages, traffic and conversion path that bring in customers. Explore our SEO pricing, then choose the services you need in the package builder.
The package builder opens in a separate page. Keep your downloaded report handy; your entries do not transfer.
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