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Average Customer Lifespan

Estimate how long an average customer stays from your churn rate.

AVERAGE LIFESPAN
20

months (≈ 1.7 years)

Average lifespan = 1 ÷ churn rate. Halving churn roughly doubles how long customers stay.

What is Average Customer Lifespan?

Average customer lifespan is how long a typical customer stays before churning. It's the inverse of your churn rate and a key input into lifetime value.

Average lifespan = 1 ÷ churn rate

How to read your result

  • At 5% monthly churn, the average customer stays ~20 months.
  • Halving churn roughly doubles average lifespan.
  • Lifespan feeds directly into LTV calculations.
  • Use the same period (monthly or annual) for churn and lifespan.

Frequently asked questions

How do you calculate customer lifespan?

Divide 1 by your churn rate (as a decimal). A 4% monthly churn rate implies an average lifespan of 25 months.

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