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CAC & ROI calculator

Work out what it actually costs you to acquire a customer, whether a campaign is profitable, and how your LTV:CAC ratio stacks up against the 3:1 benchmark.

Acquisition cost
Ads, tools, salaries, agency fees
Return on investment
Total revenue attributable to the campaign or period, same timeframe as spend above
Lifetime value (optional, for LTV:CAC)
Total revenue an average customer generates over the full relationship, not just this first order
Enter spend and at least 1 new customer.
Uses the standard CAC and ROI formulas: CAC = total spend ÷ new customers, ROI = (revenue − spend) ÷ spend × 100. Include every cost tied to acquisition, not just ad spend, for an accurate number.

Your numbers

$0
CAC per customer
0%
ROI
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LTV : CAC ratio
A ratio of 3:1 or higher is the standard healthy benchmark for eCommerce. Below 1:1 means you're losing money on every customer you acquire.
Total spend$0
New customers0
Revenue generated$0
Net profit on this spend$0
Lifetime value per customer$0

Found a channel that's working? Scale it before it slows down.

Onramp Funds is revenue-based financing built for eCommerce sellers. Repayment ties to your sales, not a fixed monthly schedule, so you can put more behind a winning campaign without waiting on cash flow.

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Built by Onramp Funds. Part of our guide to calculating CAC and ROI.