# LTV:CAC Calculator

Calculate customer lifetime value, LTV:CAC ratio, CAC payback, and SaaS unit economics from ARPA, gross margin, churn or retention, and CAC.

Canonical: https://finamodel.com/tools/ltv-cac-calculator

## How to use it

Open the interactive calculator, enter your assumptions, and review the calculated outputs. Inputs stay in your browser.

## Related resources

- [Financial model templates](https://finamodel.com/templates)
- [Financial modelling guides](https://finamodel.com/blog)