Cost Per Acquisition Calculator vs Marketing ROI Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Cost Per Acquisition Calculator
Calculate cost per acquisition (CPA) by dividing marketing spend by the number of new customers (or conversions) acquired. Use it as a primary efficiency metric for paid acquisition channels and a key input for sizing acquisition budgets against customer lifetime value.
- Answers
- Cost Per Acquisition ($)
- Inputs
- Marketing Spend, New Customers Acquired
Marketing ROI Calculator
Calculate marketing ROI as the percentage return generated by marketing spend over the cost of that spend. Use it for executive-level marketing performance reporting, channel allocation decisions, and justifying marketing budget against business outcomes.
- Answers
- Marketing ROI (%)
- Inputs
- Revenue from Marketing, Marketing Investment
At a glance
| Cost Per Acquisition Calculator | Marketing ROI Calculator | |
|---|---|---|
| Category | Ecommerce | Marketing |
| Answers | Cost Per Acquisition | Marketing ROI |
| Inputs | 2 | 2 |
| Result unit | $ | % |
When to use each
Calculate cost per acquisition (CPA) by dividing marketing spend by the number of new customers (or conversions) acquired. Use it as a primary efficiency metric for paid acquisition channels and a key input for sizing acquisition budgets against customer lifetime value.
Calculate marketing ROI as the percentage return generated by marketing spend over the cost of that spend. Use it for executive-level marketing performance reporting, channel allocation decisions, and justifying marketing budget against business outcomes.