Customer Retention Rate Calculator
How many customers you keep over a period.
How it works
Enter your numbers and the results update instantly. Fields marked * are required; the rest can stay at zero. Nothing you type is saved or sent anywhere.
Formula
Customer retention rate = (end_customers - new_customers) / start_customers * 100
Churn rate = 100 - crr
Customers retained = end_customers - new_customers
Tips: what your result means
- Re-run the numbers whenever your price, courier rate, fees or offer changes.
- If your margin is under 10%, small changes in ad cost or returns can wipe out profit.
- Use the related calculators below to check break-even ROAS and pricing together.
Frequently asked questions
Is this customer retention rate calculator free?
Yes. Every tool on this site is free to use with no sign-up.
Which currency does it use?
It picks your currency from the country you visit from. You can switch between USD, BDT, EUR and GBP.
How accurate is the result?
The maths is exact for the numbers you enter. Accuracy depends on using real costs from your store and ad account.
Related Tools
You might also need
🎯
Popular
ROAS CalculatorReturn on ad spend from revenue and spend.
⚖️ROAS CalculatorReturn on ad spend from revenue and spend.
Popular
Break-even ROAS CalculatorThe minimum ROAS your margin allows.
🧮Break-even ROAS CalculatorThe minimum ROAS your margin allows.
CPA CalculatorCost per acquisition from spend and conversions.
Want help improving these numbers?
Book a free consultation and I'll review your store and ads.