Average Customer Lifespan (mean, 1 ÷ Customer Churn) and Customer Half-life (median) are different statistics — at 4% monthly churn they are about 25 and 17 months.
- Customer Churn
- 4.00%
- Annualized Customer Churn
- 38.73%
- Average Customer Lifespan (mean)
- 25.0 mo
- Customer Half-life (median)
- 17.0 mo
- Still retained at month 24
- 37.5%
At this Customer Churn you lose half your Customers in 17.0 mo (Customer Half-life — median, not Average Customer Lifespan).
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Frequently asked questions
Why do lifespan and half-life disagree?
They measure different things: the mean vs the median of the same retention distribution. Both belong on the page, labelled for what they are.
What is Net Revenue Churn?
Net Revenue Churn = (MRR churned − expansion) ÷ starting MRR. It is distinct from Customer Churn and Revenue Churn.
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