Unit economics need CAC from sales & marketing spend and new customers.
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CAC Calculator
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CAC Calculator
Structured inputs and readable results — copy URLs, scan limits, and review findings without digging through JSON.
CAC = sales & marketing spend ÷ new customers.
Results
WaitingResults appear here
Fill the form and run the tool — outputs are structured cards, not a raw JSON dump.
Free · API · MCPToolYour platform
Use CAC Calculator three ways
The free CAC Calculator on this page works in your browser. The same workflow is available via REST API for apps and via MCP for Cursor, Claude, and other agents — one API key, one plan, one quota. This tool is part of the marketing-apis module under Marketing Tools.
- Free in browserUse CAC Calculator here — no account required.
- REST APICall from your server with
X-Api-Key. - MCP for agentsConnect Cursor or Claude to ToolYour MCP with the same key.
- 1. Get an API keySign in and open Dashboard → API Keys (works for REST and MCP).
- 2. Call or connectUse the REST API from your server, or paste the MCP URL into your agent config.
- 3. Same qualityOutput matches the free web tool across all three surfaces.
What is CAC Calculator?
Unit economics need CAC from sales & marketing spend and new customers. ToolYour CAC Calculator returns CAC = spend / customers with the formula. It does not allocate multi-touch or LTV. Same route via REST and MCP (POST /api/v1/marketing-apis/cac-calculator).
What are common questions about CAC Calculator?
What should I include in spend?
Whatever your finance policy defines as sales & marketing cost for the period — ads, tools, salaries if applicable. Consistency beats perfection.
Is this available via API and MCP?
Yes — same route via REST and MCP on one API key at 1 credit per call.
Should marketing spend alone be used, or full sales cost too?
That's a finance policy decision, not something this tool enforces. Whatever definition you choose, apply it consistently across periods so trends stay comparable.
What are the key features of CAC Calculator?
Finance-friendly formula
CAC = sales & marketing spend / new customers.
How do you use CAC Calculator?
Enter period spend and new customers
Same cohort window for both inputs.
Compare to LTV elsewhere
This tool does not compute LTV or payback.
Why this tool exists
Unit-economics reviews need customer acquisition cost from total sales & marketing spend divided by new customers — a broader number than ad-platform CPA, and one finance teams want defined consistently period over period. CAC Calculator keeps that formula explicit and auditable.
Problems it solves
Teams often conflate CPA (ad spend ÷ conversions) with CAC (full sales & marketing cost ÷ new customers), which produces two very different numbers that get compared as if they were the same metric in a board deck. Having both tools with explicit formulas keeps the distinction visible.
Common use cases
- In-house finance/marketing review: computing CAC for a monthly or quarterly unit-economics report.
- Agency growth retainer: showing a client CAC trend using a consistent formula across reporting periods.
- Agent/MCP: an agent computing CAC as one line in a broader growth-metrics summary.
- Pre-launch: modeling a target CAC ceiling before a new acquisition channel goes live.
Honest scope
This is spend ÷ new customers for the period you provide — it does not allocate multi-touch attribution across channels, does not compute LTV or payback period, and consistency in what counts as 'spend' matters more than precision. Compare against LTV using your own finance model elsewhere.
Where do you browse more marketing tools tools?
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Browse the full Marketing Tools category on ToolYour.
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