What Is Customer Acquisition Cost?
What is customer acquisition cost? It is the total amount spent on sales and marketing in a period divided by the number of new customers acquired in that same period. A company that spends $100K to acquire 200 customers has a CAC of $500.
Calculate CAC by channel from your marketing spend and customer data export
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Upload your spreadsheet.xlsx .xls .csv — free to try, no accountWhat this export contains
| Date |
| Channel |
| Ad Spend |
| Impressions |
| Clicks |
| Leads |
| Customers Acquired |
| Revenue |
| Campaign |
| Region |
What usually goes wrong with it
Marketing spend and customer counts live in different systems
Ad platform exports show spend by campaign; CRM exports show new customers by signup date. Joining them to get CAC by channel requires a manual date-range alignment that most teams skip.
DataMimi Datamimi aligns the spend export and customer export by date column and calculates CAC by channel in one pass, without requiring a manual date-range join.
CAC looks different depending on what you include in spend
Some teams include only paid ad spend; others add salaries, agency fees, and software costs. Without a consistent definition, CAC comparisons across quarters or teams are misleading.
DataMimi It flags when the spend definition changes mid-file — for example when a salary row appears in a column that previously contained only ad spend — so inconsistencies surface before you draw conclusions
Blended CAC hides which channels are efficient
Reporting one CAC number across all channels conceals that some channels acquire customers at $200 while others cost $2,000 — a difference that changes budget allocation decisions significantly.
DataMimi Datamimi calculates CAC by channel row, not blended, so the $200 channel and the $2,000 channel appear as separate rows in the output table.
Common questions
What is customer acquisition cost as a formula?
CAC = Total Sales & Marketing Spend ÷ Number of New Customers Acquired. Both figures should cover the same time period. Decide upfront which costs to include in spend and document it.
What is a good customer acquisition cost for SaaS?
A common benchmark is LTV:CAC of 3:1 or better. If your average customer generates $1,500 in lifetime value, a CAC under $500 is generally considered healthy. Industry and growth stage shift this range.
How is customer acquisition cost different from cost per lead?
Cost per lead counts everyone who submits a form or enters your funnel. CAC counts only those who became paying customers. In a business with a 10% lead-to-customer rate, CAC is roughly 10× the cost per lead.
What does Datamimi cost?
Free: $0/month, 40 credits, no credit card required. Lite: $9/month, 400 credits. Starter: $24/month, 1,500 credits, up to 3 simultaneous files. Pro: $59/month, 5,000 credits with rollover. Team: $199/month, 20,000 credits, 5 users.
Try it with your own file
DataMimi reads the file you actually have — merged cells, headers below row one, totals pasted at the bottom — and shows which rows and columns every number came from.
Ask about your file