CAC vs ROAS
CAC (Customer Acquisition Cost) and ROAS (Return on Ad Spend) both come up in business conversations and get confused. Here's the plain-English difference, side by side, so you can use each one with confidence.
The key difference: CAC refers to customer acquisition cost, while ROAS refers to return on ad spend — they describe different things even when they show up in the same sentence.
CAC — Customer Acquisition Cost
The total cost of acquiring a new customer, including marketing and sales expenses.
ROAS — Return on Ad Spend
A marketing metric that measures revenue earned for every dollar spent on advertising.
When to use CAC
Reach for "CAC" when the conversation is specifically about customer acquisition cost. The total cost of acquiring a new customer, including marketing and sales expenses.
When to use ROAS
Reach for "ROAS" when the conversation is specifically about return on ad spend. A marketing metric that measures revenue earned for every dollar spent on advertising.
FAQs
What is the difference between CAC and ROAS?
CAC stands for Customer Acquisition Cost — The total cost of acquiring a new customer, including marketing and sales expenses. ROAS stands for Return on Ad Spend — A marketing metric that measures revenue earned for every dollar spent on advertising.
Are CAC and ROAS the same thing?
No. They're often used in the same conversation because they're related, but they describe different concepts. CAC = Customer Acquisition Cost. ROAS = Return on Ad Spend.
When should I use CAC vs ROAS?
Use CAC when you're specifically referring to customer acquisition cost. Use ROAS when the topic is return on ad spend.