How to use this Payback Period Calculator
Enter your current SaaS metrics, then review the result, secondary metrics, and benchmark interpretation. This calculator is designed for fast planning rather than formal accounting.
Formula
The important point is consistency. Use the same revenue definition, time period, and customer definition every time so the metric remains comparable month to month.
CAC payback benchmark
Under 12 months is excellent, 12 to 18 months is acceptable, and above 18 months usually means growth consumes more cash unless retention and expansion are very strong.
FAQ
What does this calculator measure?
Estimate CAC payback period from acquisition cost, ARPA, and gross margin.
What is the formula?
CAC Payback = CAC ÷ Monthly Gross Profit per Account
How should I use this result?
Use it as a quick operating metric, then compare it with cohort trends, pricing changes, cash flow, retention, and acquisition channel quality.
Is this calculator exact accounting?
No. It is a planning calculator. Use consistent definitions from your finance reports when making board, investor, or fundraising decisions.