Marketing July 13, 2026 · 8 Min Read

Churn Rate Calculator – Guide & Formulas

Calculate customer churn rate to measure retention. Identify and reduce customer loss.

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Put these formulas into practice with our instant, step-by-step Churn Rate Calculator.

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The Churn Rate Calculator measures the percentage of customers who cancel their subscriptions or stop doing business with you over a given period. Churn rate is a critical metric for understanding customer retention and business sustainability.

Key Takeaway

Use the free Churn Rate Calculator to calculate customer churn rate to measure retention. identify and reduce customer loss. Get instant results with step-by-step explanations.

How to Use the Churn Rate Calculator

  1. Enter the number of customers at the start of the period.
  2. Input the number of customers lost during the period.
  3. The calculator computes your churn rate.
  4. Track churn rate trends over time.

The Formula

Churn Rate = (Customers Lost / Customers at Start) * 100

Variable Definitions

  • Churn Rate: Percentage of customers lost during a period
  • Customers Lost: Number of customers who cancelled or did not renew
  • Customers at Start: Number of customers at the beginning of the period

Calculating monthly churn rate

A subscription service starts with 1,000 customers and loses 50 during the month.

  1. Step 1: Customers at Start = 1,000, Customers Lost = 50.
  2. Step 2: Churn Rate = (50 / 1,000) * 100.
  3. Step 3: Churn Rate = 5%.
  4. Step 4: The monthly churn rate is 5%, meaning 5% of customers cancelled.

Frequently Asked Questions

What is a good churn rate?

Good churn rates vary by business model: B2B SaaS 5-7% annually, B2C subscription 5-8% monthly, and enterprise SaaS under 5% annually. Lower is always better.

How can I reduce churn?

Improve onboarding, provide excellent customer support, regularly engage with customers, gather and act on feedback, and identify at-risk customers before they churn.

What is the difference between logo churn and revenue churn?

Logo churn measures the percentage of customers lost, while revenue churn measures the percentage of revenue lost. Revenue churn accounts for different customer values.