Calculating your cost of churn is straightforward once you know the Customer Churn Cost formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Customer Churn Cost Calculator.
What is Customer Churn Cost?
The Customer Churn Cost calculation tells you your cost of churn from a few simple inputs. The figure you are solving for here is the cost of churn, expressed in INR.
The Customer Churn Cost formula
The core formula is:
Cost of churn = Customers lost × Average customer lifetime valueHere is what each input means:
- Customers lost — a number. Example: 50.
- Average customer lifetime value — a money amount. Example: ₹15,000.
How to calculate it step by step
- Write down the customers lost (for example, 50).
- Write down the average customer lifetime value (for example, ₹15,000).
- Apply the formula above to get your cost of churn.
- Double-check the result with the Customer Churn Cost Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Customers lost | 50 |
| Average customer lifetime value | ₹15,000 |
| Cost of churn | ₹7,50,000.00 |
With customers lost of 50 and average customer lifetime value of ₹15,000, the cost of churn works out to ₹7,50,000.00.
Example 2
With customers lost of 100 and average customer lifetime value of ₹15,000, the cost of churn works out to ₹15,00,000.00.
| Result | Value |
|---|---|
| Cost of churn | ₹15,00,000.00 |
Example 3
With customers lost of 25 and average customer lifetime value of ₹15,000, the cost of churn works out to ₹3,75,000.00.
| Result | Value |
|---|---|
| Cost of churn | ₹3,75,000.00 |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
Prefer not to do the maths by hand? — the Customer Churn Cost Calculator does it instantly, for free, with the formula and a worked example built in.
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