Customer Lifetime Calculator
Customer Lifetime Calculator
Calculate average customer lifetime in months from churn rate. Free SaaS retention calculator.
For demonstration purposes only. Estimates are illustrative and do not represent a formal valuation.
How it works
What is the Customer Lifetime Calculator?
Customer lifetime is how long an average customer stays subscribed before churning. It's the inverse of monthly churn rate.
Formula
Lifetime (months) = 1 ÷ Monthly Churn Rate
If 5% of customers churn each month, average lifetime is 1/0.05 = 20 months.
Worked example
Inputs: 5% monthly churn
- Lifetime = 1 / 0.05 = 20 months
Average customer lifetime = 20 months
Benefits & benchmarks
- 3% churn ≈ 33-month lifetime
- 5% churn ≈ 20-month lifetime
Frequently asked questions
How do I calculate customer lifetime?+
Divide 1 by your monthly churn rate (as a decimal).
Why does lifetime matter?+
Longer lifetimes increase LTV and make acquisition spend more efficient.
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