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Churn Rate Calculator

Churn rate is the share of customers who leave over a period. It quietly caps your growth — every point of churn is customers your marketing has to replace before you can grow.

Your details

Churn rate
5.00%
Retention rate
95.00%

Retained vs churned

$1.0KTotal
Retained
$950.0095%
Churned
$50.005%
Churn rate5.00%

Formula

Churn rate = customers lost ÷ customers at the start of the period. Retention rate is simply 100% minus churn.

How it works

Small changes in churn compound enormously. Cutting monthly churn from 5% to 3% can lift the average customer lifespan from 20 to over 33 months — raising lifetime value by more than half without acquiring a single new customer.

Frequently asked questions

What is a good churn rate?

It varies by business, but many subscription companies aim for monthly churn below 3–5%. Lower is better; annual churn under 5–7% is considered strong.

How does churn affect lifetime value?

Average customer lifespan is roughly 1 ÷ churn rate. Lower churn means longer lifespans and higher lifetime value for the same acquisition cost.

What's the difference between customer and revenue churn?

Customer churn counts lost accounts; revenue churn counts lost dollars. Revenue churn can differ when you lose large or small accounts, or when customers downgrade.

Sources & methodology

Customers lost ÷ customers at start. Customer (logo) churn — revenue churn can differ.

Last updated: 2026-07-22

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<p style="font:13px/1.5 system-ui,sans-serif;color:#52514e;margin:6px 0"><a href="https://numveo.com/business/churn-rate-calculator" target="_blank" rel="noopener">Churn Rate Calculator</a> by <a href="https://numveo.com" target="_blank" rel="noopener">Numveo</a></p>