Klantroef Growth Tools — Retention
Customer Retention Rate Calculator
The percentage of customers you keep over a period.
Your inputs
Your result
Fill in every input on the left and your result will appear here instantly.
What it calculates
Retention rate shows how many of your existing customers stay with you — the quiet driver of compounding growth.
Formula & methodology
Retention = ((Customers at End − New Customers) ÷ Customers at Start) × 100
Example
Starting with 500, ending with 560 after 120 new customers means 88% retention.
More Retention tools
View categoryChurn Rate Calculator
The percentage of customers you lose.
Use the toolChurn Impact Calculator
SoonThe financial impact of churn — and of reducing it.
Revenue Retention Calculator
SoonHow much recurring revenue remains over time.
Numbers are the start. Growth is the work.
Klantroef turns these metrics into a bespoke growth system — strategy, campaigns and reporting included.