How to Use the LTV / CAC Calculator
- Enter average revenue per customer per month and gross margin percentage.
- Set average customer lifespan in months and monthly churn rate.
- Input total marketing spend and new customers acquired.
- Review LTV, CAC, ratio, and inflation-adjusted projections.
Examples & Reference
LTV = (ARPU × Gross Margin) / Churn Rate. CAC = Marketing Spend / New Customers. LTV:CAC Ratio = LTV / CAC. PV = FV / (1 + i)^n for inflation adjustment.
Frequently Asked Questions
A ratio of 3:1 or higher is generally considered healthy for SaaS businesses, meaning each customer generates 3× their acquisition cost.