Marketing ROI (ROAS, CAC, LTV)
Measure your marketing return on investment: ROI, ROAS, customer acquisition cost and LTV/CAC ratio.
Data verified · July 2026
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Everything about Marketing ROI (ROAS, CAC, LTV)
📋Overview+
Assess the performance of a marketing campaign: return on investment (ROI), ROAS, customer acquisition cost (CAC), customer lifetime value (LTV) and the LTV/CAC ratio.
💡 Best practices
- An LTV/CAC ratio of ≥ 3× is generally considered healthy.
- Reason on margin, not revenue, for a realistic ROI.
📖User guide+
How to use this calculator
- 1
Enter the marketing spend and the revenue generated.
- 2
Enter the number of customers acquired.
- 3
Enter the average order value, repeat purchases and gross margin.
- 4
Get ROI, ROAS, CAC, LTV and the LTV/CAC ratio.
📚Glossary+
- ROAS
- Return On Ad Spend: revenue generated per £1 invested.
- CAC
- Customer acquisition cost = spend / customers acquired.
- LTV
- Customer lifetime value: total margin generated by a customer.
ℹ️Sources & updates+
Last data update
July 4, 2026
Sources and references
Standard marketing indicators (ROI, ROAS, CAC, LTV).
The data in this calculator is updated regularly to reflect the latest official rates. When in doubt, consult the official sources listed above.