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📊 SaaS LTV, CAC & Churn Unit Economics Calculator
Calculate Subscriber Lifetime Value (LTV), LTV:CAC Ratio, Churn Rate impact, and payback period for SaaS startups.
📝 Enter Your Numbers
📊 Your Results
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Customer Lifetime Value (LTV)
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LTV : CAC Ratio
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Payback Period (Months)
📘 Complete Guide: SaaS LTV, CAC & Churn Unit Economics Calculator
Use this free calculator to instantly estimate your numbers. All calculations happen in your browser — no data is stored.
What is a healthy LTV:CAC ratio for SaaS startups?
A healthy SaaS business target is an LTV:CAC ratio of 3:1 or higher (LTV is 3x customer acquisition cost). Ratios above 5:1 suggest under-investing in growth.
What is a good monthly churn rate for SaaS?
B2B SaaS: 1% to 2% monthly churn (under 5% is acceptable). B2C SaaS: 3% to 7% monthly churn. High churn destroys LTV and makes profitable CAC scaling impossible.
How to calculate SaaS payback period?
Payback Period = CAC / ARPU. For $180 CAC and $45/mo ARPU, payback occurs in 4 months. Target payback period is under 12 months for boot-strapped SaaS apps.