Blended CAC

Metric

Blended CAC is the total acquisition spend across all marketing channels divided by the total number of new customers acquired in the same period.

Layman Explanation & Analogy

Blended CAC is the "real-world" cost of acquiring a customer. If you open your bank account and see you spent $10,000 on marketing in May, and your CRM shows 200 brand-new customers placed an order in May, your Blended CAC is $50 per customer — simple, honest, and impossible to fake with ad platform tricks.

Mathematical Formula

Blended CAC = Total Acquisition Spend ÷ Total New Customers Acquired

Worked real-world example

You spend $15,000 on paid ads and acquire 300 new customers across all channels (including word-of-mouth and organic search). Blended CAC = $15,000 ÷ 300 = $50 per customer.

What people get wrong & common traps

Ad platforms will always claim a lower "Channel CAC" than your Blended CAC because they don't see other ads the customer saw. CFOs and investors care about Blended CAC because it reconciles directly with bank cash outflow.

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