Churn Rate Calculator
Calculate your customer churn rate, revenue churn, and understand the impact on your business growth. Essential for SaaS and subscription businesses.
Free Tool — No signup required
- Customer & Revenue Churn
- Retention Rate
- Customer Lifetime Analysis
- Instant Results
Enter Your Data
Number of customers at the beginning of your measurement period
Please enter a valid number
Number of customers who canceled or didn't renew
Please enter a valid number
Add Revenue Churn (Optional)
Monthly Recurring Revenue at the beginning
Revenue lost from customers who churned
Your Results
Enter your data and click Calculate to see results.
How to Calculate Churn Rate
1
Enter Customer Numbers
Input the number of customers at the start of your period and how many were lost.
2
Select Your Period
Choose whether you're measuring monthly, quarterly, or annual churn.
3
Get Instant Results
View your churn rate, retention rate, and customer lifetime insights instantly.
Customer Churn Rate:
Churn Rate = (Customers Lost ÷ Customers at Start) × 100
Customer Retention Rate:
Retention Rate = 100 - Churn Rate
Average Customer Lifetime:
Lifetime = 1 ÷ (Churn Rate ÷ 100)
Revenue Churn Rate:
Revenue Churn = (MRR Lost ÷ MRR at Start) × 100
Frequently Asked Questions
A good churn rate varies by industry. For SaaS companies, monthly churn rates of 2-5% are average, while anything below 2% is excellent. B2B SaaS typically has lower churn (1-2%) compared to B2C (3-7%). The key is to track your churn rate over time and work to reduce it continuously.
Customer Churn Rate = (Customers Lost During Period ÷ Customers at Start of Period) × 100. For example, if you start with 1,000 customers and lose 50, your churn rate is (50 ÷ 1,000) × 100 = 5%. Revenue Churn Rate = (MRR Lost ÷ MRR at Start) × 100.
Customer churn measures the percentage of customers who leave, while revenue churn measures the percentage of revenue lost. They can differ significantly if higher-value customers churn at different rates than lower-value customers. Tracking both provides a complete picture.
Customer Retention Rate = 100% - Customer Churn Rate. If your churn rate is 5%, your retention rate is 95%. Retention rate is often framed positively - it shows what percentage of customers you kept rather than lost.
Average Customer Lifetime (in months) = 1 ÷ (Monthly Churn Rate ÷ 100). For example, if your monthly churn is 5%, average customer lifetime is 1 ÷ 0.05 = 20 months. This helps you understand how long you can expect customers to stay.
Measure churn monthly for active monitoring. Track both monthly and annual churn to understand different time horizons. Monthly churn is better for operational decisions, while annual churn helps with strategic planning and CLV calculations.
Want to Reduce Your Churn?
Tracking your churn rate is the first step. Our tools help you monitor key metrics and optimize your digital product business for sustainable growth.
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