Payback Period Calculator

How long until your investment pays for itself? For SaaS, that's your CAC divided by the monthly gross profit each customer brings.

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💰 Unit economics

The core SaaS health check — sub-12 month payback is the benchmark to aim for.

📈 LTV built in

See lifetime value with churn and the classic LTV/CAC ratio.

🔁 Churn-aware

Optional churn input refines your LTV to match reality.

🔒 Private

Runs entirely in your browser. No data leaves your device.

More SaaS tools

Complete the subscription financial picture.