Customer Acquisition Cost Calculator
Calculate your blended and per-channel CAC by dividing marketing and sales spend by new customers acquired.
Acquisition Channels
CAC Analysis
Blended CAC
$467
Total Spend
$28,000
Total Customers
60
| Channel | Spend | Customers | CAC | vs Blended |
|---|---|---|---|---|
| Google Ads | $8,000 | 25 | $320 | +31% |
| Facebook/Meta Ads | $5,000 | 15 | $333 | +29% |
| Content Marketing | $3,000 | 12 | $250 | +46% |
| Sales Team | $12,000 | 8 | $1,500 | -221% |
Most efficient channel: Content Marketing at $250 per customer
What is this?
Customer Acquisition Cost (CAC) measures how much it costs your business to acquire a single new customer. Blended CAC is your total marketing and sales spend divided by total new customers. Per-channel CAC breaks this down by acquisition channel (paid ads, content, outbound sales, etc.) to reveal which channels are most efficient. Understanding both blended and per-channel CAC is essential for optimizing your go-to-market strategy.
Why it matters
Knowing your CAC by channel helps you allocate budget to the most efficient acquisition channels and cut spending on underperforming ones. Investors expect founders to know their CAC and how it compares to LTV. A declining CAC over time signals improving product-market fit and operational efficiency. For SaaS businesses, the benchmark is to recover CAC within 12 months of gross margin.
How to use this calculator
Add each of your acquisition channels with the monthly spend and number of new customers acquired through that channel. The calculator computes per-channel CAC, blended CAC across all channels, and highlights your most efficient channel. Tip: include all costs associated with each channel — not just ad spend, but also tool subscriptions, agency fees, and allocated team salaries.
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