SaaS Churn Rate & CAC Calculator
Calculate customer churn, revenue churn, customer acquisition cost, CAC payback and an LTV proxy in one SaaS planning tool.
✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
Recent tools are remembered only on this device.
Planning estimate only. Use one consistent cohort and period. The LTV figure is a simple steady-state proxy, not a valuation or investment recommendation.
Customer churn3.50%
Gross revenue churn4.00%
CAC$500.00
Simple CAC payback1.3 months
Simple LTV proxy$11,429
LTV : CAC proxy22.86×
Why use this saas churn rate & cac calculator?
Use this free saas churn rate & cac calculator directly in your browser. There is no account to create and the result appears immediately.
How to use it
Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is SaaS Churn Rate & CAC Calculator free?
Yes. The core tool is free to use without creating an account.
Do I need an account to use SaaS Churn Rate & CAC Calculator?
No. You can use the core Toolbox workflow without signing up.
Does SaaS Churn Rate & CAC Calculator work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.